APA (7th ed.) Citation

Howell, T. R., Araya, B., & Millie, W. R. (1974). Breeding biology of the gray gull, Larus modestus. University of California Press.

Chicago Style (17th ed.) Citation

Howell, Thomas R., Braulio Araya, and William R. Millie. Breeding Biology of the Gray Gull, Larus Modestus. Berkeley: University of California Press, 1974.

MLA (9th ed.) Citation

Howell, Thomas R., et al. Breeding Biology of the Gray Gull, Larus Modestus. University of California Press, 1974.