Kaskel, A., Hummer, P. J. J., & Daniel, L. (1995). Merrill biology: An everyday experience. Glencoe.
Cita Chicago (17th ed.)Kaskel, Albert, Paul J. Jr Hummer, i Lucy Daniel. Merrill Biology: An Everyday Experience. New York: Glencoe, 1995.
Cita MLA (9th ed.)Kaskel, Albert, et al. Merrill Biology: An Everyday Experience. Glencoe, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.