Cita APA (7a ed.)

Fitter, R. S. R. (1963). Wildlife in Britain. Penguin Books.

Cita Chicago Style (17a ed.)

Fitter, Richard Sidney Richmond. Wildlife in Britain. Harmondsworth, Middlesex: Penguin Books, 1963.

Cita MLA (9a ed.)

Fitter, Richard Sidney Richmond. Wildlife in Britain. Penguin Books, 1963.