APA-referens (7:e uppl.)

Grene, M. (1968). Approaches to a philosophical biology. Basic Books.

Chicago-referens (17:e uppl.)

Grene, Marjorie. Approaches to a Philosophical Biology. New York: Basic Books, 1968.

MLA-referens (8:e uppl.)

Grene, Marjorie. Approaches to a Philosophical Biology. Basic Books, 1968.