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Abundance Estimation for Harbor Porpoise (Phocoena Phocoena) Based on Ship Surveys Along the Coasts of California, Oregon and Washington

Jay Barlow

出版	National Marine Fisheries Service, Southwest Fisheries Center, 1987
URL	http://books.google.com.hk/books?id=s7c9HAAACAAJ&hl=&source=gbs_api