Campbell Neil A., Cain Michael L., Jackson Robert B., Minorsky Peter V., Reece Jane B., Urry Lisa A., & Wasserman Steven A. (2009). Biology, 8th edition (Eighth edition.). Pearson Benjamin Cummings.
Cita Chicago (17th ed.)Campbell Neil A., Cain Michael L., Jackson Robert B., Minorsky Peter V., Reece Jane B., Urry Lisa A., i Wasserman Steven A. Biology, 8th Edition. Eighth edition. San Francisco: Pearson Benjamin Cummings, 2009.
Cita MLA (9th ed.)Campbell Neil A., et al. Biology, 8th Edition. Eighth edition. Pearson Benjamin Cummings, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.