Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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