APA aipamena

Morera, J. A. (2006). Agriculture, natural resources, environment and sustainable development in Costa Rica.

Chicago Style aipamena

Morera, Jorge A. Agriculture, Natural Resources, Environment and Sustainable Development in Costa Rica. 2006.

MLA aipamena

Morera, Jorge A. Agriculture, Natural Resources, Environment and Sustainable Development in Costa Rica. 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.