APA-čujuhus (7. p.)
Berta, A. (2012). Return to the sea: The life and evolutionary times of marine mammals. University of California Press.
Chicago-čujuhus (17. p.)
Berta, Annalisa. Return to the Sea: The Life and Evolutionary Times of Marine Mammals. Berkeley, CA: University of California Press, 2012.
MLA-čujuhus (9. p.)
Berta, Annalisa. Return to the Sea: The Life and Evolutionary Times of Marine Mammals. University of California Press, 2012.
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