Soil testing and plant analysis.
APA Citation
Westerman, R. Lee., Soil Science Society of America. (1990). Soil testing and plant analysis. 3rd ed. / Madison, Wis., USA: Soil Science Society of America.
MLA Citation
Westerman, Robert Lee, 1938-, and Soil Science Society of America. Soil Testing And Plant Analysis. 3rd ed. / Madison, Wis., USA: Soil Science Society of America, 1990.
Warning: These citations may not always be complete (especially for serials).