Cita APA (7th ed.)

MORGAN, R. (1981). Soil conservation: Problems and prospects. Wiley.

Cita Chicago (17th ed.)

MORGAN, R.P.C. Soil Conservation: Problems and Prospects. New York: Wiley, 1981.

Cita MLA (9th ed.)

MORGAN, R.P.C. Soil Conservation: Problems and Prospects. Wiley, 1981.