Cita APA (7th ed.)

Oxford, P., & Watkins, G. (2009). Galapagos: Both sides of the coin (1a. ed.). Enfoque Ediciones.

Cita Chicago (17th ed.)

Oxford, Pete, i Graham Watkins. Galapagos: Both Sides of the Coin. 1a. ed. Quito: Enfoque Ediciones, 2009.

Cita MLA (9th ed.)

Oxford, Pete, i Graham Watkins. Galapagos: Both Sides of the Coin. 1a. ed. Enfoque Ediciones, 2009.