APA (7th ed.) Citation

Dickinson, E. C., Kennedy, R. S., & Parkes, K. C. (1991). The birds of the Philippines: An annotated check-list. British Ornithologists'.

Chicago Style (17th ed.) Citation

Dickinson, Edward C., Robert S. Kennedy, and Kenneth C. Parkes. The Birds of the Philippines: An Annotated Check-list. Herts, UK: British Ornithologists', 1991.

MLA (9th ed.) Citation

Dickinson, Edward C., et al. The Birds of the Philippines: An Annotated Check-list. British Ornithologists', 1991.