Pena, R. E. Petrology and geochemistry of the Balungao Group of volcanic centers, Pangasinan-Nueva Ecija, Luzon.
Chicago Style (17th ed.) CitationPena, Rolando E. Petrology and Geochemistry of the Balungao Group of Volcanic Centers, Pangasinan-Nueva Ecija, Luzon.
MLA (9th ed.) CitationPena, Rolando E. Petrology and Geochemistry of the Balungao Group of Volcanic Centers, Pangasinan-Nueva Ecija, Luzon.
Warning: These citations may not always be 100% accurate.