Philippine Institute of Volcanology and Seismology <br/><br/>
Volcanoes of the Philippines. 

 - Quezon City :  PHILVOLCS Press,  1991?. 
 - 40 p. : ill. 
<br/><br/> Cover title. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Volcanoes--Philippines