PADI (Professional Association of Diving) <br/><br/>
Open water diver manual / 
PADI 
 - Rancho Santa Margarita, CA :   PADI,   [1999] 
 - iv, 260 pages :  illustrations ;  24 cm 
<br/><br/> Rev. ed. of: PADI open water diver manual, c1994.  "Product no. 79180 version 2.0"--T.p. verso.  Includes index. 
<br/><br/><label>ISBN: </label>187866316X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scuba diving-- Handbooks, manuals, etc.