Gaya APA

Concepts in Biology. (2007). New York: [s.n.].

Gaya Chicago

Concepts in Biology. . New York: [s.n.], 2007. Text.

Gaya MLA

Concepts in Biology. . New York: [s.n.], 2007. Text.

Gaya Turabian

Concepts in Biology. New York: [s.n.], 2007. Print.