BUSCADOR DE RECURSOS UNSAM

Cita APA (7a ed.)

Fisher, J. (1946). Watching birds (ed. rev.). Penguin Books.

Cita Chicago Style (17a ed.)

Fisher, James. Watching Birds. ed. rev. New York ; Harmondsworth ; Middlesex: Penguin Books, 1946.

Cita MLA (8a ed.)

Fisher, James. Watching Birds. ed. rev. Penguin Books, 1946.