Cita APA (7th ed.)

Audesirk, T., Audesirk, G., & Byers, B. E. (2000). Life on earth (2nd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Audesirk, Teresa, Gerald Audesirk, i Bruce E. Byers. Life on Earth. 2nd ed. Upper Saddle River, N.J: Prentice Hall, 2000.

Cita MLA (9th ed.)

Audesirk, Teresa, et al. Life on Earth. 2nd ed. Prentice Hall, 2000.