Cita APA (7a ed.)

Mengel, K., & Kirkby, E. A. (1979). Principles of plant nutrition (2nd ed.). International Potash Institute.

Cita Chicago Style (17a ed.)

Mengel, Konrad, y Ernest A. Kirkby. Principles of Plant Nutrition. 2nd ed. Bern: International Potash Institute, 1979.

Cita MLA (9a ed.)

Mengel, Konrad, y Ernest A. Kirkby. Principles of Plant Nutrition. 2nd ed. International Potash Institute, 1979.