APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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