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301
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303
Geology and mineral resources of the Philippines, vol. 1 geology.
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Research highlights from the PCARR network summary proceedings of the National Coordinated (1973-1980) and on-going (1981) Research Projects.
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305
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306
First national conservation conference on natural resources workshop proceedings conducted at the Philippine Plaza Hotel, 9-12 December 1981
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307
Fourth Regional Conference on Geology, Mineral and Energy Resources of Southeast Asia. proceedings.
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308
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309
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310
Research on minerals for Philippine development planning a survey
Foilsithe / Cruthaithe 1981LEABHAR
