APA ציטוט

León-Páez, E. (1999). The bases of development and the value of ecotourism in Costa Rica.

Citación estilo Chicago

León-Páez, Eduardo. The Bases of Development and the Value of Ecotourism in Costa Rica. 1999.

ציטוט MLA

León-Páez, Eduardo. The Bases of Development and the Value of Ecotourism in Costa Rica. 1999.