Gaya APA

BIOLOGY. (1996). New York: [s.n.].

Gaya Chicago

BIOLOGY. 7. New York: [s.n.], 1996. Text.

Gaya MLA

BIOLOGY. 7. New York: [s.n.], 1996. Text.

Gaya Turabian

BIOLOGY. New York: [s.n.], 1996. Print.