1. Aguilar, A. (2001). Fin Whale Balaenoptera physalus. In: Encyclopedia of Marine Mammals, W. F. Perrin, B. Wursig, and J. G. M. Thewissen, eds., pp. 435–438, Academic Press, San Diego.
2. Andrews, R. C. (1914). Monographs of Pacific Cetacea. 1-The California gray whale (Rhachianectes glaucus Cope). 1. Member Am. Mus. Nat. Hist. new series 1: 227–287.
3. Andrews, R. C. (1916). Monographs of Pacific Cetacea. 2-The sei whale (Balaenoptera borealis Lesson). 1. History, habits, external anatomy, osteology, and relationship. Member Am. Mus. Nat. Hist., new series 1: 289–388.
4. Andrews, R. C. (1918). A note on the skeletons of Balaenoptera edeni, Anderson, in the Indian Museum, Calcutta. Records Indian Mus. 15: 105–107.
5. Arnason, U., and Gullberg, A. (1994). Relationship of baleen whales established by cytochrome b sequence comparison. Nature 367: 726–728.