Cita APA (7th ed.)

Stevenson, F. J. (1986). Cycles of soil: Carbon, nitrogen, phosphorus, sulfur, micronutrients. John Wiley & Sons.

Cita Chicago (17th ed.)

Stevenson, F. J. Cycles of Soil: Carbon, Nitrogen, Phosphorus, Sulfur, Micronutrients. New York: John Wiley & Sons, 1986.

Cita MLA (9th ed.)

Stevenson, F. J. Cycles of Soil: Carbon, Nitrogen, Phosphorus, Sulfur, Micronutrients. John Wiley & Sons, 1986.