Dyfyniad APA

Thewissen, J. G. M., & Dillard, J. (2014). The walking whales: From land to water in eight million years. University of California Press.

Dyfyniad Arddull Chicago

Thewissen, J. G. M., and Jacqueline Dillard. The Walking Whales: From Land to Water in Eight Million Years. Oakland, California: University of California Press, 2014.

Dyfyniad MLA

Thewissen, J. G. M., and Jacqueline Dillard. The Walking Whales: From Land to Water in Eight Million Years. University of California Press, 2014.

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