Shadows in the sea: the sharks, skates and rays McCormick, Harold W. (Harold Weber), 1903- creator text book Philadelphia Chilton Books [1963] 1963 [1st ed.]
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ENG Chondrichthyes QL638.9 .M3 597.31 https://www.biodiversitylibrary.org/bibliography/10167 62016260 10.5962/bhl.title.10167