Citation:
Calambokidis, J. 1994. Encounter with a Humpback. In: Life on the Edge: A Guide to California’s Endangered Natural Resources. Edited by C.G. Thelander and M. Crabtree. Biosystems Books, Santa Cruz, CA.
Link:
https://www.amazon.com/Life-Edge-Californias-Endangered-Resources/dp/0930588665/ref=sr_1_1?keywords=life+on+the+edge.+a+guide+to+california%27s+endangered+natural+resources&qid=1569600077&sr=8-1