APA

NEIL A. CAMBELL, . (1999). BIOLOGY. USA: BENJAMIN/CUMMINGS PUBLISHING.

Chicago

NEIL A. CAMBELL, . 1999. BIOLOGY. USA: BENJAMIN/CUMMINGS PUBLISHING.

Harvard

NEIL A. CAMBELL, . (1999). BIOLOGY. USA: BENJAMIN/CUMMINGS PUBLISHING.

MLA

NEIL A. CAMBELL, . BIOLOGY. USA: BENJAMIN/CUMMINGS PUBLISHING. 1999.