Cita APA (7th ed.)

Raven, H. P., & Raven, P. H. .. . a. (2013). Biology (9th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Raven, H. Peter, i Peter H ......[et al] Raven. Biology. 9th ed. New York: McGraw-Hill, 2013.

Cita MLA (9th ed.)

Raven, H. Peter, i Peter H ......[et al] Raven. Biology. 9th ed. McGraw-Hill, 2013.