Alfred Copeland Callen

OCLC:688185054

Alfred Copeland Callen / Floyd Rowe Watson / Huber Ogilvie Croft / Maurice Kendall Fahnestock / Cloyde Moffett Smith

OSU:32435068222355

Architectural acoustics

University of Illinois (Urbana-Champaign campus). Engineering Experiment Station / Alfred Copeland Callen / Crandall Zachariah Rosecrans / Cloyde Moffett Smith / Herbert Fisher Moore

OSU:32435068220748

Drilling and boring machinery

Alfred Copeland Callen / Carl Herbert Casberg / Cloyde Moffett Smith / Harold Eaton Babbitt / Herbert Fisher Moore / Harry Edward Schlenz / Stuart Wellington Lyon / William H. Spencer / Norville James Alleman

OSU:32435068222207

Clay

Albert Ernest Roberts Westman / Alfred Copeland Callen / Frank Erwin Richart / Herbert Fisher Moore / Richard Ernest Gould / Anton Brandtzæg / Cloyde Moffett Smith / Marion I. Levy / Norville James Alleman / Rex Lenoi Brown

OSU:32435068221886

Bleaching powder

Alfred Copeland Callen / Cloyde Moffett Smith

IND:30000099762530

Mine ventilation

Alfred Copeland Callen / Alonzo Plumsted Kratz / Cullen Warner Parmelee / George Wellington Pickels / Cloyde Moffett Smith / Thomas Newkirk McVay

OSU:32435068797281

Coal mine accidents

Alfred Copeland Callen / Cloyde Moffett Smith / Dana Burks / David Ray Mitchell

OSU:32435068800374

Coal

Alfred Copeland Callen

LCCN:e20000360

Mine gases

United States. Federal Board for Vocational Education

LCCN:e31000714

Mine ventilation

Alfred Copeland Callen

OCLC:1060647551

Mines and mineral resources

OCLC:460595168

Alfred Copeland Callen / David Ray Mitchell

UIUC:30112121963034

Coal

Alfred Copeland Callen / Phillip J. Reilly / Robert Zerubabel Virgin / United States. Federal Board for Vocational Education

OCLC:16634041

Accidents

Alfred Copeland Callen / Carl Herbert Casberg / Cullen Warner Parmelee / Alfred Earl Badger / Carl Edward Schubert / Cloyde Moffett Smith / Thomas Newkirk McVay / George A. Ballam

LCCN:a33000461

Coal mine accidents

LCCN:e20000300

Agricultural education

LCCN:e31000714

Mine ventilation

United States. Congress. House

OCLC:1062853465

Alfred Copeland Callen / Charles R. Allen / Frederick George Nichols / Harry Archibald Pattison / James Herbert Gill / Robert Zerubabel Virgin / Zella E. Bigelow / Michael J. Kane

LCCN:e20000520

Building

Alfred B. Rich / Boris Emmet / Franklyn Meine / Ordway Tead / Philip J. Reilly / Ralph R. Ray / Roy Willmarth Kelly / Robert Zerubabel Virgin / United States. Federal Board for Vocational Education

LCCN:e20000300

Auditing

Robert Zerubabel Virgin / United States. Federal Board for Vocational Education / United States. Office of Education

LCCN:e31000441

Gases

Alfred Copeland Callen

LCCN:24007187

Coal mines and mining

Cullen Warner Parmelee / Frank Erwin Richart / Joseph Tykocinski Tykociner / Thomas Newkirk McVay / Lloyd Preston Garner / Louis John Larson / Pierce Waddell Ketchum

LCCN:a27000270

Girders

Alfred Copeland Callen / Cloyde Moffett Smith

LCCN:a31001518

Coal mine accidents

LCCN:e31000441

Mine safety

Alfred Copeland Callen

OCLC:502462721

Building, Iron and steel

J. C. Stoddard / A. C. Callen / F. T. Agthe / J. L. Dynan

OCLC:663709853

Alfred Copeland Callen / Illinois State Geological Survey

OCLC:44411479

Coal

Alfred Copeland Callen

LCCN:a31000146

Coal

Albert Francis Zahm / Alfred Copeland Callen / American Association of School Administrators / George W. Codrington / Howard Shirley Palmer / Melvin Guy Mellon / Pennsylvania. General Assembly. Joint State Government Commission Committee on strip mining / Raymond Clare Archibald / Willard Rouse Jillson / William Ludwell Owen

LCCN:gs46000109

Airplanes