De Silva, Leopoldo <br/><br/>
Teaching Guide for Senior High School:  Earth Science/ 
by Leopoldo de Silva 
 - Quezon City:  Commision on Higher Education,  c2016 
 - 379p.:  il;  28cm 
 - c2016 
<br/><br/> Includes Biographical Notes 
<br/><br/>Chapter 1. -- Origin and structure of the earth -- 2. Earth materials and resources -- 3. Earth process -- 4. History of the earth. 
<br/><br/><label>Dewey Class. No.: </label>BTSH.550  / Ea76 2016