Cita APA

Hardin, G. (1966). Biology: Its principles and implications (2a. ed.). San Francisco: W.H. Freeman.

Citación estilo Chicago

Hardin, Garrett. Biology: Its Principles and Implications. 2a. ed. San Francisco: W.H. Freeman, 1966.

Cita MLA

Hardin, Garrett. Biology: Its Principles and Implications. 2a. ed. San Francisco: W.H. Freeman, 1966.