Cita APA (7th ed.)

Philipson, W. R. (1948). Birds of a valley. Longmans, Green.

Cita Chicago (17th ed.)

Philipson, W. R. Birds of a Valley. London, New York: Longmans, Green, 1948.

Cita MLA (8th ed.)

Philipson, W. R. Birds of a Valley. Longmans, Green, 1948.