APA (7th ed.) Zitazioa

Havlin, J. L., Beaton, J. D., Tisdale, S. L., & Nelson, W. L. (1999). Soil fertility and fertilizers: An introduction to nutrient management (6a. ed.). Prentice Hall.

Chicago Style (17th ed.) Zitazioa

Havlin, John L., James D. Beaton, Samuel L. Tisdale, eta Werner L. Nelson. Soil Fertility and Fertilizers: An Introduction to Nutrient Management. 6a. ed. Upper Saddle River: Prentice Hall, 1999.

MLA (9th ed.) Zitazioa

Havlin, John L., et al. Soil Fertility and Fertilizers: An Introduction to Nutrient Management. 6a. ed. Prentice Hall, 1999.