Blecha, Milo K. <br/><br/>
Exploring Science. 

 - 1st Ed. 
 - Canada :  Laidlaw Brothers publication,  1976. 
 - 288 p. 
<br/><br/><label>ISBN: </label>084455524x 
<br/><br/><label>Dewey Class. No.: </label>500  / BLE