1967. Cetaceans. In S. Anderson and J. K. Jones (editors), Recent mammals of the world; a synopsis of families, p. 291-324. The Ronald Press, N.Y.

RICE, D. W., and V. B. SCHEFFER.

1968. A list of the marine mammals of the world. U.S. Fish Wildl. Serv., Spec. Sci. Rep. Fish. 579, 16 p.

RIDGEWAY, S. H. (editor).

1972. Mammals of the sea; biology and medicine. Charles C. Thomas, Springfield, Ill., xiii + 812 p.

SCHEVILL, W. E.

1974. The whale problem. Harvard Univ. Press, Cambridge, Mass., 297 p.

SERGEANT, D. E., and H. D. FISHER.

1957. The smaller Cetacea of eastern Canadian waters. J. Fish. Res. Board Can. 14:83-115.

SERGEANT, D. E., A. W. MANSFIELD, and B. BECK.