Books by Pieter A. Folkens:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Folkens, Pieter A.: Cetaceans of the Channel Islands National Marine Sanctuary (National Marine Sanctuary Program, 1987), also by Stephen Leatherwood, Brent S. Stewart, and United States. National Marine Fisheries Service (page images at HathiTrust)
Find more by Pieter A. Folkens at your library, or elsewhere.