Strykowski, Joe <br/><br/>
Diving for fun  a complete textbook for students, instructors, and advanced divers ill. by Ernie Duerksen 
by Joe Strykowski 
 - 4th rev. ed 
 - Northfield, Ill.  Dacor Corp.  1974 
 - v, 135 p.  ill.  26 cm 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Skin diving
<br/><br/><label>Dewey Class. No.: </label>797.2  / 3