APA引文

Keenan, R. (2014). Costa Rica: Lessons from 30 years of forest and environmental policy.

Citación estilo Chicago

Keenan, Rod. Costa Rica: Lessons From 30 Years of Forest and Environmental Policy. 2014.

MLA引文

Keenan, Rod. Costa Rica: Lessons From 30 Years of Forest and Environmental Policy. 2014.

警告：這些引文格式不一定是100％准確.