Cita APA

Buckley, R. (2009). Ecotourism: Principles and practices. CABI.

Chicago Edition Citation

Buckley, Ralf. Ecotourism: Principles and Practices. Oxfordshire,UK: CABI, 2009.

Cita MLA

Buckley, Ralf. Ecotourism: Principles and Practices. CABI, 2009.

Atenció: Aquestes cites poden no estar 100% correctes.