Cita APA

Stone, D., & Gujja, B. (1999). The Ramsar convention: A reflection on 27 years (1a. ed.). Suiza: Wold Wildlife Fund.

Citación estilo Chicago

Stone, D., y B. Gujja. The Ramsar Convention: A Reflection On 27 Years. 1a. ed. Suiza: Wold Wildlife Fund, 1999.

Cita MLA

Stone, D., y B. Gujja. The Ramsar Convention: A Reflection On 27 Years. 1a. ed. Suiza: Wold Wildlife Fund, 1999.