APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.