Cita APA

Raven, P. H., & Johnson, G. B. (2011). Biology (Ninth Edition.). McGraw-Hill.

Citación estilo Chicago

Raven, Peter H., and George B. Johnson. Biology. Ninth Edition. Boston: McGraw-Hill, 2011.

Cita MLA

Raven, Peter H., and George B. Johnson. Biology. Ninth Edition. McGraw-Hill, 2011.