R. H. Shaw / Jack Ralph Runkles / Donald R. Nielsen

UIUC:30112019571121

Agriculture

Earl Orel Heady / George Wells Ladd / Harold O. Carter / John P. Doll / L. E. Everson / Loyd K. Fischer / Mary Stewart Lyle / R. H. Shaw / Walter G. Miller / Eddie Vee Easley / Howard W. Ottoson / Jack Ralph Runkles / John Francis Timmons / John T. Pesek / Donald R. Nielsen / Walter E. Chryst

UIUC:30112019567350

Aging

M. A. Rahman / Edward Allan Hiler / Jack Ralph Runkles / American Society of Agricultural Engineers

OCLC:24360080

Arthur B. Mackie / Beatrice Elizabeth Donaldson / Earl Orel Heady / Gerald W. Dean / John A Schnittker / Landy Boyd Altman / R. H. Shaw / Robert A. Rohwer / E. H. Jebe / Everett G. Stoneberg / Gerald L. Barger / Grace Melvina Augustine / Herbert B. Howell / Hsiang Hsing Yeh / Laurel D. Loftsgard / Jack Ralph Runkles

UIUC:30112000447885

Agricultural laborers

R. H. Shaw / Jack Ralph Runkles / Donald R. Nielsen

UIUC:30112019571121

Agriculture

Robert H. Shaw / Jack Ralph Runkles / Donald R. Nielsen

OCLC:1221510889

Soil moisture

Robert H. Shaw / Gerald L. Barger / Jack Ralph Runkles / Iowa State College. Agricultural and Home Economics Experiment Station

UIUC:30112018396330

Plants