Solomon, E. P., Berg, L. A., & Martin, D. W. (2002). Biology (5th ed.). Brooks/Cole.
Cita Chicago (17th ed.)Solomon, Eldra Pearl, Linda A. Berg, i Diana W. Martin. Biology. 5th ed. Australia: Brooks/Cole, 2002.
Cita MLA (9th ed.)Solomon, Eldra Pearl, et al. Biology. 5th ed. Brooks/Cole, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.