The Six most common types of soil. 

 - Quezon City :  Mabuhay Educational Center,  2002. 
 -  1 chart: colored; 38 x 53 cm. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>Chart 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils
<br/><br/><label>LC Class. No.: </label>631.4 Si97 c2002