Plant availability of added phosphorus in different Iowa soils /
by Oetit Koswara and John J. Hanway.
APA Citation
Koswara, O., Hanway, J. J. (1969). Plant availability of added phosphorus in different Iowa soils. Ames, Iowa: Iowa Agriculture and Home Economics Experiment Station, Iowa State University of Science and Technology.
MLA Citation
Koswara, Oetit, and John J Hanway. Plant Availability of Added Phosphorus In Different Iowa Soils. Ames, Iowa: Iowa Agriculture and Home Economics Experiment Station, Iowa State University of Science and Technology, 1969.
Warning: These citations may not always be complete (especially for serials).