The American Cetacean Society field guide to the orca - Gordon, David G. (David George), 1950-; Flaherty, Charles F.; American Cetacean Society (Seattle, WA : Sasquatch Books, 1990)
Includes bibliographical references (p. 39).
Keywords: Killer whale; Killer whale -- Pacific Coast (U.S.); Killer whale -- British Columbia -- Pacific Coast; Whale watching -- Pacific Coast (U.S.) -- Guidebooks; Whale watching -- British Columbia -- Pacific Coast -- Guidebooks