The Iowa system of soil management /
by W.H. Stevenson and P.E. Brown.

APA Citation

Stevenson, W. H. (William Henry)., Brown, P. E. (Percy Edgar). (1923). The Iowa system of soil management. Ames, Iowa: Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts.

MLA Citation

Stevenson, W. H. (William Henry), 1872-, and P. E. (Percy Edgar) Brown. The Iowa System of Soil Management. Ames, Iowa: Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts, 1923.

Warning: These citations may not always be complete (especially for serials).