Thomas Worthington / James Taylor Worthington / Robert T. Worthington / Eleanor Worthington / Mary Tiffin Worthington / Sarah Worthington / Albert G. Worthington / David B. Macomb

OCLC:57582884

Military supplies

Robert A. Beall / Robert B. Worthington / Robert Blickensderfer

UOM:39015078460980

Rolling (Metal-work)

Robert B. Worthington

UOM:39015078520965

Copper sulfide

Danton L. Paulson / Robert B. Worthington / Willar L. Hunter

UOM:39015078475970

Chalcopyrite

Danton L. Paulson / Donald P. Blasko / G. W. Elger / Henry E. Perlee / Maria I. De Rosa / Merle L. Bowser / P. W. Jeran / William C. McLaughlin / David H. Lawhead / Donald E. Kirby / Galen G. Waddell / John C. Edwards / Richard L. Stein / Robert B. Worthington / John G. McCaslin / M. C. Irani / S. C. Rhoads / Willard L. Hunter

OSU:32435025835257

Chalcopyrite

Robert B. Parker

1322781176 / 9781322781174

Robert B. Worthington

OCLC:148959277

Danton L. Paulson / Donald P. Blasko / G. W. Elger / Henry E. Perlee / J. Donald Dixon / John T. Popp / Joseph M. Singer / Lewis M. McNay / Maria I. De Rosa / Martin Hertzberg / Merle L. Bowser / Michael John Ferrante / P. W. Jeran / William C. McLaughlin / Charles M. McCulloch / David H. Lawhead / Donald E. Kirby / Galen G. Waddell / J. M. Stuve / John C. Edwards / John R. M. Hill / M. Ashraf Mahtab / Margaret E. Harris / Richard L. Stein / Robert B. Worthington / Dale W. Richardson / John G. McCaslin / Joseph Grumer / M. C. Irani / S. C. Rhoads / Willard L. Hunter

OCLC:2214485

Chalcopyrite

Miles E. Tyrrell / United States. Bureau of Mines / Alan H. Goode

OCLC:253729304

Danton L. Paulson / Robert B. Worthington / Willar L. Hunter

UOM:39015078475970

Chalcopyrite

Robert B. Worthington

UOM:39015078520965

Copper sulfide

Robert A. Beall / Robert B. Worthington / Robert Blickensderfer

UOM:39015078460980

Rolling (Metal-work)

Robert Chambers

9781136236501 / 1136236503

Social Science

Robert W. Prichard

9780819228772 / 081922877X

Religion

Robert Ward

NLS:B000032147

England

Robert Wodrow Archbald

STANFORD:36105061302936

Judges

Robert Bardwell Descendants' American Ancestry Association

WISC:89082436239

Annie Reynolds / Elise Henrietta Martens / Ella Burgess Ratcliffe / Francis Washington Kirkham / Jessie M. Parker / Mina M. Langvick / Regional Conference on Home-Making Education / Robert Weiss Kunzig

UIUC:30112109618402

African Americans

Robert Rogers Hubach

0814328091 / 9780814328095

Language Arts & Disciplines

Robert P. Addleman

WISC:89062955620

German Americans

Robert Earl Feeney / Richard Gall Allison

UOM:39015072121091

Science

Robert Schneider

IND:30000145137034

Groundwater

Robert Yuen-Kuang Hou

UOM:39015032181433

Danton L. Paulson / Donald P. Blasko / G. W. Elger / Henry E. Perlee / Maria I. De Rosa / Merle L. Bowser / P. W. Jeran / William C. McLaughlin / David H. Lawhead / Donald E. Kirby / Galen G. Waddell / John C. Edwards / Richard L. Stein / Robert B. Worthington / John G. McCaslin / M. C. Irani / S. C. Rhoads / Willard L. Hunter

OSU:32435025835257

Chalcopyrite

Victor J. Guarino / Robert A. Bambenek

UCR:31210024724229

Water reuse

Robert S. Craig

STANFORD:36105010657471

Steel industry and trade

Richard H. Bolt / Leo Leroy Beranek / Robert Bradford Newman

UOM:39015095285196

Noise

Angela Mace / Robert Thorne

UOM:39015009267777

Architecture

Wayne K. Hocking / Jürgen Röttger / Robert D. Palmer / Toru Sato / Phillip B. Chilson

9781107147461 / 1107147468

Science

John P. Greer / Daniel A. Arber / Bertil Glader / Alan F. List / Robert T. Means / Frixos Paraskevas / George M. Rodgers

9781469846224 / 1469846225

Medical