Cita APA (7a ed.)

Fennell, D. A. (2002). Ecotourism programme planning. CABI.

Cita Chicago Style (17a ed.)

Fennell, David A. Ecotourism Programme Planning. Wallingford [etc.]: CABI, 2002.

Cita MLA (9a ed.)

Fennell, David A. Ecotourism Programme Planning. CABI, 2002.