Philippines. Department of Science and Technology. Philippine Institute of Volcanology. Philippine Institute of Volcanology and Seismology. The planet earth: The making of a trench, volcanoes and volcanic chain. Philippines. Department of Science and Technology. Philippine Institute of Volcanology. Philippine Institute of Volcanology and Seismology.
Chicago Style (17th ed.) CitationPhilippines. Department of Science and Technology. Philippine Institute of Volcanology. Philippine Institute of Volcanology and Seismology. The Planet Earth: The Making of a Trench, Volcanoes and Volcanic Chain. [s.l.]: Philippines. Department of Science and Technology. Philippine Institute of Volcanology. Philippine Institute of Volcanology and Seismology.
MLA citiranjePhilippines. Department of Science and Technology. Philippine Institute of Volcanology. Philippine Institute of Volcanology and Seismology. The Planet Earth: The Making of a Trench, Volcanoes and Volcanic Chain. Philippines. Department of Science and Technology. Philippine Institute of Volcanology. Philippine Institute of Volcanology and Seismology.