BLOUGH, Glenn O. <br/><br/>
Elementary School Science 

 - 5th ed. 
 - New York.  Holt,Rinehart & Winston Inc,  US         1951 
 - xi, 753p; 
<br/><br/><label>ISBN: </label>0-03-091539-2 
<br/><br/><label>Dewey Class. No.: </label>500