APA引文

Alfaro M., M. (1993). Incentives for reforestation in Costa Rica.

Citación estilo Chicago

Alfaro M., Marielos. Incentives for Reforestation in Costa Rica. 1993.

MLA引文

Alfaro M., Marielos. Incentives for Reforestation in Costa Rica. 1993.

警告：這些引文格式不一定是100％准確.