Cita APA (7a ed.)

Van Wyk, P. (1993). Southern African trees: A photographic guide. New Holland.

Cita Chicago Style (17a ed.)

Van Wyk, Piet. Southern African Trees: A Photographic Guide. London: New Holland, 1993.

Cita MLA (8a ed.)

Van Wyk, Piet. Southern African Trees: A Photographic Guide. New Holland, 1993.