APA aipamena

Janzen, D. H. (1999). Survival of the wild areas of Costa Rica through its garden.

Chicago Style aipamena

Janzen, Daniel H. Survival of the Wild Areas of Costa Rica Through Its Garden. 1999.

MLA aipamena

Janzen, Daniel H. Survival of the Wild Areas of Costa Rica Through Its Garden. 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.