Campbell, N. A., Mitchell, L. G., & Reece, J. B. (2000). Biology: Concepts & connections (3rd ed.). Benjamin/Cummings.
Cita Chicago (17th ed.)Campbell, Neil A., Lawrence G. Mitchell, i Jane B. Reece. Biology: Concepts & Connections. 3rd ed. San Francisco: Benjamin/Cummings, 2000.
Cita MLA (9th ed.)Campbell, Neil A., et al. Biology: Concepts & Connections. 3rd ed. Benjamin/Cummings, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.