Anderson, Norman D. <br/><br/>
Investigating science in the swimming pool and ocean   
by Norman D. Anderson 
 - New york  McGraw Hill Book Company  1978 
 - 175p. 
<br/><br/><label>ISBN: </label>0070016348 
<br/><br/><label>Dewey Class. No.: </label>530.028  / N78