Moore, R., & Cotner, S. Understanding Galápagos: What you'll see and what it means.
Chicago Style aipamenaMoore, Randy., và Sehoya Cotner. Understanding Galápagos: What You'll See and What It Means.
MLA aipamenaMoore, Randy., và Sehoya Cotner. Understanding Galápagos: What You'll See and What It Means.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.