Hirsch, Alan J. <br/><br/>
Science Explorations 9:  / 
Hirsch, Alan J. 
 -  Toronto: John Wiley & Sons  1986 
<br/><br/> 3875  Science - History 
<br/><br/><label>ISBN: </label>0-471-79734-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science - Canada|Structure of Matter|Chemical change|Light and colour|Cell functions|Green plants|Food, energy and people|Space<br/>Science - History
<br/><br/><label>Dewey Class. No.: </label>509/HIR/S