McCormick, Harold W.  1903- <br/><br/>
Shadows in the sea :  the sharks, skates and rays / 
Harold W. McCormick and Tom Allen, with William E. Young. 
 - 1st ed. 
 - Philadelphia :  Chilton Books,  c1963. 
 - xii, 415 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliography and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chondrichthyes.
<br/><br/><label>Dewey Class. No.: </label>597.31  / MCS 1963