Tisdale, S. L. (1993). Soil fertility and fertilizers (5th ed.). Prentice-Hall of India.
Cita Chicago (17th ed.)Tisdale, Samuel L. Soil Fertility and Fertilizers. 5th ed. New Delhi: Prentice-Hall of India, 1993.
Cita MLA (9th ed.)Tisdale, Samuel L. Soil Fertility and Fertilizers. 5th ed. Prentice-Hall of India, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.