एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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