APA

Brown J. R. (. E., Proceedings of symposium spondered by divisions S-4 S. A. A. a. t. s. t. a. p. a. c. (. o. t. A. S. o. A. a. S. S. S. o. A., Bates T. E. & Vitosh M. L. (1987). Soil Testing. Wissconsin: Soil Science Society of America.

Chicago

Brown J R ( Editor), Proceedings of symposium spondered by divisions S-4 S-8 A1 A4 and the soil testing an plant analysis commtttee (s877) of the American Society of Agronomy and Soil Science Society of America, Bates T E and Vitosh M L. 1987. Soil Testing. Wissconsin: Soil Science Society of America.

Harvard

Brown J. R. (. E., Proceedings of symposium spondered by divisions S-4 S. A. A. a. t. s. t. a. p. a. c. (. o. t. A. S. o. A. a. S. S. S. o. A., Bates T. E. and Vitosh M. L. (1987). Soil Testing. Wissconsin: Soil Science Society of America.

MLA

Brown J R ( Editor), Proceedings of symposium spondered by divisions S-4 S-8 A1 A4 and the soil testing an plant analysis commtttee (s877) of the American Society of Agronomy and Soil Science Society of America, Bates T E and Vitosh M L. Soil Testing. Wissconsin: Soil Science Society of America. 1987.