Alberto, Annie Melind Paz. <br/><br/>
Self-learning module in principles of ecology / 
Annie Melind Paz-Alberto, Jane Santos-Guzman. 
 - Science City of Munoz, Nueva Ecija :  Environmental Mgt. Institute (EMI),  c2002. 
 - 110 pages ;  27cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.<br/>Ecology--Problems, exercises, etc.