APA aipamena

Kilmer, J. V., Younts, S. E., & Brady, N. C. (1968). The role of potassium in agriculture (Primera edición.). American society of agronomy.

Chicago Style aipamena

Kilmer, J. V., S. E. Younts, and Nyle C. Brady. The Role of Potassium in Agriculture. Primera edición. Madison: American society of agronomy, 1968.

MLA aipamena

Kilmer, J. V., et al. The Role of Potassium in Agriculture. Primera edición. American society of agronomy, 1968.