Heffernan.D.A <br/><br/>
The World of Science 
Heffernan.D.A 
 - Australia  Longman Cheshire  1982 
 - 283p. 
<br/><br/><label>ISBN: </label>0582685559 
<br/><br/><label>Dewey Class. No.: </label>500  / HEF