Richard A. Andrews / Richard R. Weyrick

UIUC:30112027492377

Water quality management

Bennett Bert Foster / Clifton C. Cloud / David H. Harrington / Edwin Tighe Bardwell / Harold Clayton Grinnell / Oliver Pagan Wallace / David A. Storey / Richard A. Andrews / Richard D. Hopkins / Richard R. Weyrick / George E. Frick / Robert Lawrence Christensen

UIUC:30112001704656

Agriculture

Richard Russell Weyrick

MINN:31951D00381783V

Forest management

Bennett Bert Foster / Richard R. Weyrick

OCLC:11415163

Linear programming

Bennett Bert Foster / Clifton C. Cloud / David H. Harrington / Edwin Tighe Bardwell / Harold Clayton Grinnell / Oliver Pagan Wallace / David A. Storey / Richard A. Andrews / Richard D. Hopkins / Richard R. Weyrick / George E. Frick / Robert Lawrence Christensen

UIUC:30112001704656

Agriculture

Richard A. Andrews / Richard R. Weyrick

UIUC:30112027492377

Water quality management

Gail M. Leighton / James P. Barrett / Pilgrim S. A. L. (Sidney A. L.) / Richard A. Andrews / G. R. Crombie / Leland J. Goldsmith / Richard R. Weyrick / Robert D. Harter

OCLC:11210190

Forest soils

David P. Olson / Richard R. Weyrick

MINN:31951D01424210C

White pine

Richard R. Weyrick / Frank D. Irving

OCLC:48744172