ebrary, Inc, Perrin, W. F., Würsig, B. G., & Thewissen, J. G. M. (2009). Encyclopedia of marine mammals (2nd ed.). Academic.
Chicago-čujuhus (17. p.)ebrary, Inc, W. F. Perrin, Bernd G. Würsig, juo J. G. M. Thewissen. Encyclopedia of Marine Mammals. 2nd ed. London: Academic, 2009.
MLA-čujuhus (9. p.)ebrary, Inc, et al. Encyclopedia of Marine Mammals. 2nd ed. Academic, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.