| Authors(s) | Leatherwood, S., R. R. Reeves, W. F. Perrin, and W. E. Evans. |
| Year | 1988 |
| Title | Whales, Dolphins, and Porpoises of the Eastern North Pacific and Adjacent Arctic Waters: A Guide to their Identification. Dover Publications, New York. 245 pp. |
| Authors(s) | Leatherwood, S., R. R. Reeves, W. F. Perrin, and W. E. Evans. |
| Year | 1988 |
| Title | Whales, Dolphins, and Porpoises of the Eastern North Pacific and Adjacent Arctic Waters: A Guide to their Identification. Dover Publications, New York. 245 pp. |