prepared by Geological Survey Division, Bureau of Mines

Republic of the Philippines. Dept. of Natural Resources. Bureau of Mines 1977 Report of investigation no. 92

所蔵館1館

prepared by the Geological Survey Division, Philippine Bureau of Mines ; with the cooperation of some private oil exploration companies ; under the direction of the Philippine Geological and Tectonic Map Committee formed in 1962

Bureau of Mines in coordination with the Board of Technical Surveys and Maps 1963 Ed. 1

地図資料 (地図)

所蔵館1館