APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.