Allas, Ian Mark F. <br/><br/>
Discover science 9 :  teacher's guidebook for essential understanding / 
Ian Mark F. Allas; Allen A. Espinosa; Bonifacio V. Navarette. 
 - 108 p . ;  25 cm. 
<br/><br/><label>ISBN: </label>9789714605749 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science --Guidebooks.<br/>Science--Study and teaching (Secondary).
<br/><br/><label>Dewey Class. No.: </label>502.02/Al526