Alfred E. Torrey / Frank A. Swenson / Geological Survey (U.S.). Topographic Division. Research and Technical Control Branch / George J. Edwards / Ivan D. Yost / Paul Averitt / Paul Livingston Applin / Rolland William Carter / Roy Edwin Oltman / Hubert Jerome Tracy / W. Kenneth Bach

OSU:32435030456545

Cartography

Bruce Ronald Colby / Roy Edwin Oltman

IND:30000143969412

Missouri River Valley

Eugene F. Serr / H. Cecil Spicer / John Charles Maher / Roy Edwin Oltman

OSU:32435064438716

Earth resistance (Geophysics)

Roy Edwin Oltman

IND:30000143926339

Floods

Roy Edwin Oltman

UTEXAS:059173004385193

Stream measurements

Roy Edwin Oltman / Hubert Jerome Tracy

UCSC:32106020887847

Rain and rainfall

Claude Bouchard / Roy J. Shephard

UOM:49015002039734

Health & Fitness

Roy Dejoie / George C. Fowler / David B. Paradice

UCSC:32106009932010

Business & Economics

Richard Roy Powell / Patrick J. Rohan

STANFORD:36105062277335

Law

Alfred E. Torrey / Frank A. Swenson / Geological Survey (U.S.). Topographic Division. Research and Technical Control Branch / George J. Edwards / Ivan D. Yost / Paul Averitt / Paul Livingston Applin / Rolland William Carter / Roy Edwin Oltman / Hubert Jerome Tracy / W. Kenneth Bach

OSU:32435030456545

Cartography

Roy Edwin Oltman

UTEXAS:059173004385193

Stream measurements

Roy Edwin Oltman

UTEXAS:059173004447621

Stream measurements

Roy Edwin Oltman

OCLC:429693476

Adrian E. Scheidegger / Cleo Ladell Sainsbury / H. R. Feltz / I. S. McQueen / James Richard Carter / John T. McGill / Kenneth Orris Emery / Loyd L. Young / Roy Edwin Oltman / Stanley Alfred Schumm / William W. Sayre / Adrian Ramond Chamberlain / Alfred Rice Green / B. B. Hanshaw

LCCN:gs64000201

Beryllium

Roy Edwin Oltman

OCLC:1052789559

Amazon River

Eugene F. Serr / H. Cecil Spicer / John Charles Maher / Roy Edwin Oltman

OSU:32435064438716

Earth resistance (Geophysics)

Roy Edwin Oltman / Hubert Jerome Tracy

UCSC:32106020887847

Rain and rainfall

Roy Edwin Oltman

OCLC:1083982986

Stream measurements

Roy Edwin Oltman

UCR:31210022906109

Hydrological stations

Roy Edwin Oltman / Brazil. Ministério da Marinha / Universidade Federal do Rio de Janeiro / Geological Survey (U.S.)

OCLC:32342024

Stream measurements

Bruce Ronald Colby / Roy Edwin Oltman

UCR:31210022905671

Missouri River Watershed

Roy Edwin Oltman

IND:30000143926339

Floods

Roy Edwin Oltman

OCLC:429693443

Roy Edwin Oltman

UCR:31210022905838

Hydrogeology

Bruce Ronald Colby / Roy Edwin Oltman

IND:30000143969412

Missouri River Valley

Albert M. Moore / Arthur Pierce Butler / Betsy A. Weld / Claude Huffman / D. R. Shawe / Daniel P. Bauer / Donnell Foster Hewett / Geological Survey (U.S.) / H. Edward Clifton / Hollis Milon Orem / Luna Bergere Leopold / Robert Roy Coats / Roy Edwin Oltman / Walter Basil Langbein / Arthur Hubert / Forrest Graham Poole / J. D. Mensik / Margaret S. Griffin / Walton Henry Durum / Donald Albert Brobst / George W. Brett / Leonard Benjamin Riley / R. L. Phillips

LCCN:gs68000207

Barite

Alfred E. Torrey / Alfred Herman Chidester / Frank A. Swenson / Geological Survey (U.S.). Topographic Division. Research and Technical Control Branch / George J. Edwards / Ivan D. Yost / Louise R. Berryhill / Paul Averitt / Paul Livingston Applin / Roy Edwin Oltman / W. Kenneth Bach

LCCN:gs51000206

Cartography

Frank Edward Byrne / Geological Survey (U.S.) / Geological Survey (U.S.). Water Resources Division. Atlanta District / Geological Survey (U.S.). Water Resources Division. Austin District / Geological Survey (U.S.). Water Resources Division. Oklahoma City District / Geological Survey (U.S.). Water Resources Division. Portland District / Geological Survey (U.S.). Water Resources Division. Salt Lake City District / Geological Survey (U.S.). Water Resources Division. St. Paul District / Geological Survey (U.S.). Water Resources Division. Tacoma District / John Xavier Combo / Robert Thomas Littleton / Rollin E. Stevens / Roy Edwin Oltman / Ruth A. Atherton / Stanley E. Good / Walter Basil Langbein / Hubert William Lakin

LCCN:gs50000101

Atlantic Coast (U.S.)

Roy Edwin Oltman / Hubert Jerome Tracy

OCLC:953267026

Rain and rainfall

Bruce Ronald Colby / Roy Edwin Oltman

OCLC:886734805

Hydrogeology