Cita APA (7th ed.)
Chiras, D. D. (1993). Biology, the web of life. West Pub. Co..
Cita Chicago (17th ed.)
Chiras, Daniel D. Biology, the Web of Life. Minneapolis: West Pub. Co., 1993.
Cita MLA (9th ed.)
Chiras, Daniel D. Biology, the Web of Life. West Pub. Co., 1993.
Atenció: Aquestes cites poden no estar 100% correctes.