Collar, N., Mallari, N. A., & Tabaranza, B. R. (1999). Threatened birds of the Philippines: The Haribon Foundation/BirdLife International Red Data Book. Bookmark.
芝加哥风格引文Collar, Nigel, Neil Aldrin Mallari, 与 Blas R. Tabaranza. Threatened Birds of the Philippines: The Haribon Foundation/BirdLife International Red Data Book. Makati City: Bookmark, 1999.
MLA引文Collar, Nigel, et al. Threatened Birds of the Philippines: The Haribon Foundation/BirdLife International Red Data Book. Bookmark, 1999.
警告：这些引文格式不一定是100％准确.