A Field Guide to the Whales & Seals of the Gulf of Maine,by Steven Katona, David Richardson, and Robin Hazard, (Rockland, Me: Maine Coast Printers, 1975), back book-cover and p. 66.
Crayon drawing on coquille board for book by Steven Katona, David Richardson, and Robin Hazard, A Field Guide to the Whales & Seals of the Gulf of Maine (Rockland, Me: Maine Coast Printers, 1975), back book-cover and p. 66