A centrifugal method for the determination of humus /
A.A. Wells, W.H. Stevenson, W.F. Coover.

APA Citation

Wells, A. A., Stevenson, W. H. (William Henry)., Coover, W. F. (1911). A centrifugal method for the determination of humus. Ames, Iowa: Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts.

MLA Citation

Wells, A. A, W. H. (William Henry) Stevenson, and W. F Coover. A Centrifugal Method for the Determination of Humus. Ames, Iowa: Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts, 1911.