Cita APA (7th ed.)

Fennell, D. A. (2020). Ecotourism (Fifth edition.). Routledge.

Cita Chicago (17th ed.)

Fennell, David A. Ecotourism. Fifth edition. London, UK ; New York, USA: Routledge, 2020.

Cita MLA (9th ed.)

Fennell, David A. Ecotourism. Fifth edition. Routledge, 2020.