Report of the study of the semester vs. the quarter plan /

by Thompson, Louis M. (Louis Milton)
Ames, IA : Iowa State College, 1952

Soils and soil fertility

by Thompson, Louis M. (Louis Milton)
New York, McGraw-Hill, 1952
1st ed.

Weather and technology in the production of corn and soybeans /

by Thompson, Louis M. (Louis Milton)
Ames : Center for Agricultural and Economic Development, College of Agriculture, Iowa State University of Science and Technology, 1963

Weather variability and the need for a food reserve /

by Thompson, Louis M. (Louis Milton)
Ames : Center for Agricultural and Economic Development, Iowa State University of Science and Technology, 1966

Soils and soil fertility.

by Thompson, Louis M. (Louis Milton)
New York, McGraw-Hill, 1957
2d ed.

Soils and soil fertility.

by Thompson, Louis M. (Louis Milton)
New York, McGraw-Hill, 1952
1st ed.

Soils and soil fertility /

by Thompson, Louis M. (Louis Milton), Troeh, Frederick R.
New York : McGraw-Hill, 1973
Third edition.

Soils and soil fertility /

by Thompson, Louis M. (Louis Milton), Troeh, Frederick R.
New York : McGraw-Hill, 1978
4th ed.

Soils and soil fertility /

by Troeh, Frederick R.
New York : Oxford University Press, 1993
Fifth edition.

Soils and soil fertility /

by Troeh, Frederick R.
Ames, Iowa : Blackwell Pub., 2005
6th ed.