Cita APA (7th ed.)

Watt, K. E. F. (1966). Systems analysis in ecology. Academic Press.

Cita Chicago (17th ed.)

Watt, Kenneth E. F. Systems Analysis in Ecology. New York: Academic Press, 1966.

Cita MLA (9th ed.)

Watt, Kenneth E. F. Systems Analysis in Ecology. Academic Press, 1966.