Style de citation APA (7e éd.)

ebrary, Inc, Dowling, R. K., & Fennell, D. A. (2003). Ecotourism policy and planning. CABI Pub..

Style de citation Chicago (17e éd.)

ebrary, Inc, Ross Kingston Dowling, et David A. Fennell. Ecotourism Policy and Planning. Wallingford, Oxon, UK ; Cambridge, MA, USA: CABI Pub., 2003.

Style de citation MLA (9e éd.)

ebrary, Inc, et al. Ecotourism Policy and Planning. CABI Pub., 2003.