Geology and mineral resources of Ilocos Sur Province
By: by Map and Mineral Resources Compilation Team.
Contributors: Philippines. Bureau of Mines and Geo-Sciences. Map and Mineral Resources Compilation Team.
Series: Report of investigation ;; no. 107; Report of investigation (Philippines. Bureau of Mines and Geo-Sciences) ;; no. 107.
Publisher: Republic of the Philippines, Ministry of Natural Resources, Bureau of Mines and Geo-Sciences
Published: 1981
Place of publication: Manila
Language: eng
Number of pages: 13
Subjects: Geology -- Philippines -- Ilocos Sur.; Mines and mineral resources -- Philippines -- Ilocos Sur.
Notes: "July, 1981."