Gaya APA

Moore, R., Cotner, S. (2014). Understanding Galapagos : what you'll see and what it means . New York: Mc Graw-Hill.

Gaya MLA

Moore, Randy., Cotner, Sehoya. "Understanding Galapagos : what you'll see and what it means". New York: Mc Graw-Hill, 2014. Text.