Allen, S. G., Mortenson, J., & Webb, S. (2011). Field guide to marine mammals of the Pacific Coast: Baja, California, Oregon, Washington, British Columbia. University of California Press.
芝加哥风格引文Allen, Sarah G., Joseph Mortenson, 与 Sophie Webb. Field Guide to Marine Mammals of the Pacific Coast: Baja, California, Oregon, Washington, British Columbia. Berkeley: University of California Press, 2011.
MLA引文Allen, Sarah G., et al. Field Guide to Marine Mammals of the Pacific Coast: Baja, California, Oregon, Washington, British Columbia. University of California Press, 2011.
警告：这些引文格式不一定是100％准确.