Biggs, A., Crispen Hagins, W., Holliday, W., Kapicka, C., Lundgren, L., Haley MackenZie, A., . . . Zike, D. (2012). Biologia: Ciencia de Glencoe. Mexico (Mexico): McGraw-Hill.

Biggs, A., W. Crispen Hagins, W.G Holliday, Ch.L Kapicka, L. Lundgren, A. Haley MackenZie, W.D Rogers, M.B Sewer, and D. Zike. Biologia: Ciencia De Glencoe. Mexico (Mexico): McGraw-Hill, 2012.

Biggs, A., et al. Biologia: Ciencia De Glencoe. Mexico (Mexico): McGraw-Hill, 2012.