GOUGH, D. <br/><br/>
Focus on Science: Exploring the Natural World. 

 - Canada,  D.C. Health Canada Ltd,  1980. 
 - 361p.: ill.; picture  Index  24cm 
<br/><br/><label>ISBN: </label>0-669-00843-5 
<br/><br/><label>Dewey Class. No.: </label>LM 560.1 GOU