Παραπομπή σε μορφή APA (7η εκδ.)

Libosada, C. M. (2009). Birdwatching in the Philippines. Department of Tourism ; Recreational Outdoor Exchange ; Wild Bird Club of the Philippines.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Libosada, Carlos M. Birdwatching in the Philippines. Philippines: Department of Tourism ; Recreational Outdoor Exchange ; Wild Bird Club of the Philippines, 2009.

Παραπομπή σε μορφή MLA (9th εκδ.)

Libosada, Carlos M. Birdwatching in the Philippines. Department of Tourism ; Recreational Outdoor Exchange ; Wild Bird Club of the Philippines, 2009.