Frank W. Andrew / Velmar Walk Davis

OCLC:36559587

Grain

A. G. Mueller / David Alden Storey / Earl Raymond Swanson / Eric Richard Berg / Mack N. Longham / Norman George Phillip Krausz / Royce A. Hinton / Velmar Walk Davis

UIUC:30112071806597

Agriculture

Alten F. Grandt / Benjamin Koehler / Billy Joe Bond / Charles S. Walters / Clarence Peter Schumaier / David Edgar Lindstrom / Earl Raymond Swanson / Earl Reece Leng / Jacob Arthur Weber / Kenneth R. Peterson / Robert McDermand Peart / Robert W. Jugenheimer / Roger Gaurth Hansen / Velmar Walk Davis / Walter August Huelsen / Kenneth Emmet Wiiliams / Alvin Leonard Lang / Arthur James Crowley / Don Marvin Carlson / Gerald Lee Ross / John Elliot Wills / Wayne Lewis Meek / William Putnam Bemis / Richard Mather Forbes / Roy Neuman Van Arsdall

UIUC:30112019528790

Agricultural systems

Velmar Walk Davis / University of Illinois at Urbana-Champaign. Agricultural Experimental Station / United States. Department of Agricultural Economics / United States. Department of Economic Research Service. Farm Production Economics Division

OCLC:32293847

Corn

Folke Dovring / Franklin J Reiss / George G. Judge / Max F. Jordan / Milton C. Hallberg / Ralph Joseph Mutti / Roland Willey Bartlett / Royce A. Hinton / Velmar Walk Davis

UIUC:30112018943552

Agricultural prices

Folke Dovring / Franklin J Reiss / Hans Eberhard Buchholz / James E. Sykes / Ralph Joseph Mutti / Roland Willey Bartlett / Stephen C. Schmidt / Takashi Takayama / Velmar Walk Davis

UIUC:30112018943560

Agricultural price supports

OCLC:779264167

Velmar Walk Davis / Edmund F. Jansen

OCLC:24624646

Irrigation

Velmar Walk Davis

OCLC:24624259

Irrigation

United States. Department of Agriculture. Economic Research Service / Velmar Walk Davis

LCCN:71606839

Insect pests

United States. Department of Agriculture. Economic Research Service. Farm Production Economics Division / Robert P. Jenkins / Austin S. Fox / Velmar W. Davis

OCLC:631550265

Velmar Walk Davis

OCLC:24624441

Irrigation

Velmar Walk Davis

OCLC:24648287

Corn

Velmar Walk Davis

OCLC:24624329

Experimental watershed areas

A. G. Mueller / C. Peter Schumaier / Charles Leslie Stewart / Earl Raymond Swanson / Eric Richard Berg / Fred L. Mann / Luther C. McKinney / Ralph Joseph Mutti / Thomas Applegate Hieronymus / Velmar Walk Davis

OCLC:24624138

Agriculture