Cita APA (7th ed.)

Wearing, S., & Neil, J. (2009). Ecotourism: Impacts, potentials, and possibilities (2nd ed.). Elsevier.

Cita Chicago (17th ed.)

Wearing, Stephen, i John Neil. Ecotourism: Impacts, Potentials, and Possibilities. 2nd ed. Amsterdam: Elsevier, 2009.

Cita MLA (9th ed.)

Wearing, Stephen, i John Neil. Ecotourism: Impacts, Potentials, and Possibilities. 2nd ed. Elsevier, 2009.