Παραπομπή σε μορφή APA (7η εκδ.)

Balen, B. v. (1999). Birds on fragmented islands persistence in the forests of Java and Bali. Wageningen University and Research Centre.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Balen, Bas van. Birds on Fragmented Islands Persistence in the Forests of Java and Bali. Wageningen: Wageningen University and Research Centre, 1999.

Παραπομπή σε μορφή MLA (8th εκδ.)

Balen, Bas van. Birds on Fragmented Islands Persistence in the Forests of Java and Bali. Wageningen University and Research Centre, 1999.