Ecological profile of Batangas / 
Philippines, Environmental Management Buresu, Department of Environment and Natural Resources 
 - Quezon City :  The Bureau,   c1989. 
 - v, 59 p. :  ill.,maps ;  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology--Philippines, Batangas.<br/>Natural resources--Philippines, Batangas.<br/>Natural resources--Management.--Philippines