Παραπομπή APA

Raby, P. (2001). Alfred Russel Wallace: A life. Princeton University Press.

Παραπομπή Chicago Style

Raby, Peter. Alfred Russel Wallace: A Life. New Jersey: Princeton University Press, 2001.

Παραπομπή MLA

Raby, Peter. Alfred Russel Wallace: A Life. Princeton University Press, 2001.