Cita APA (7th ed.)

Freeman, S., Quillin, K., Allison, L. A., & Black, M. (2017). Biological science (Sixth edition, Global edition.). Pearson.

Cita Chicago (17th ed.)

Freeman, Scott, Kim Quillin, Lizabeth A. Allison, i Michael Black. Biological Science. Sixth edition, Global edition. Boston, MA: Pearson, 2017.

Cita MLA (9th ed.)

Freeman, Scott, et al. Biological Science. Sixth edition, Global edition. Pearson, 2017.