Bettsworth, Michael <br/><br/>
Drownproofing :  a technique for water survival / 
Michael Bettsworth 
 - New York :  Schocken Books,  1977 
 - 55 p. :  ill ;  22 cm. 
<br/><br/><label>ISBN: </label>0805236465  5.95 0805205586pbk  2.95 
<br/><br/><label>LCCN: </label>76-48762 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drowning--Prevention<br/>Swimming