APA

Stevenson F. J., Cole M. A., . (1999). Cycles of soil. New York: John Wiley and Sons.

Chicago

Stevenson F J, Cole M A, . 1999. Cycles of soil. New York: John Wiley and Sons.

Harvard

Stevenson F. J., Cole M. A., . (1999). Cycles of soil. New York: John Wiley and Sons.

MLA

Stevenson F J, Cole M A, . Cycles of soil. New York: John Wiley and Sons. 1999.