Geology and oil possibilities of the Philippines / 
by Grant W. Corby ... [et al.] 
 - Manila :  Bureau of Printing,  1961 
 - 363 p. ;  26 cm. 
 - Technical bulletin (Philippines. Dept. of Agriculture and Natural Resources) ;  no. 21 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Philippines<br/>Petroleum--Philippines