Raven, P. H., & Johnson, G. B. (2011). Biology (Ninth Edition.). McGraw-Hill.
Citación estilo ChicagoRaven, Peter H., and George B. Johnson. Biology. Ninth Edition. Boston: McGraw-Hill, 2011.
Cita MLARaven, Peter H., and George B. Johnson. Biology. Ninth Edition. McGraw-Hill, 2011.
Warning: These citations may not always be 100% accurate.