De Gula, S. B. and De Leon, R.N. <br/><br/>
SCIENCE IN PRCACTICAL WAYS 3 REVISED EDITION 

 - 364 pages  Colored illustration  1.5 cm 
<br/><br/><label>ISBN: </label>9786218062535 
<br/><br/><label>Dewey Class. No.: </label>D3656