APA

Greenland D. J., Lal R., . (1977). Soil conservation and management in the humid tropics. New York: John Wiley and Sons.

Chicago

Greenland D J, Lal Rattan, . 1977. Soil conservation and management in the humid tropics. New York: John Wiley and Sons.

Harvard

Greenland D. J., Lal R., . (1977). Soil conservation and management in the humid tropics. New York: John Wiley and Sons.

MLA

Greenland D J, Lal Rattan, . Soil conservation and management in the humid tropics. New York: John Wiley and Sons. 1977.