Cita APA (7th ed.)

Enger, E. D., Ross, F. C., & Bailey, D. B. (2012). Concepts in biology (14th edition.). McGraw-Hill.

Cita Chicago (17th ed.)

Enger, Eldon D., Frederick C. Ross, i David B. Bailey. Concepts in Biology. 14th edition. New York: McGraw-Hill, 2012.

Cita MLA (9th ed.)

Enger, Eldon D., et al. Concepts in Biology. 14th edition. McGraw-Hill, 2012.