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.
Chicagoスタイル(17版)引用形式Allen, Sarah G., Joseph Mortenson, , Sophie Webb. Field Guide to Marine Mammals of the Pacific Coast: Baja, California, Oregon, Washington, British Columbia. Berkeley: University of California Press, 2011.
MLA(9版)引用形式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.
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