Gaya APA

Understanding Galapagos: What You’ll See and What It Means. (2014). Palangkaraya: Mc Graw Hill _2.

Gaya MLA

Understanding Galapagos: What You’ll See and What It Means. Cet. 1-Ed. 1. Palangkaraya: Mc Graw Hill _2, 2014. Text.