Geological Survey of Papua New Guinea, Johnson, R. W., Ravian, E., & Cooke, R. J. S. (1981). Cooke-Ravian volume of volcanological papers. Geological Survey of Papua New Guinea.
Chicago Style (17th ed.) CitationGeological Survey of Papua New Guinea, R. W. Johnson, Elias Ravian, and R. J. S. Cooke. Cooke-Ravian Volume of Volcanological Papers. Port Moresby: Geological Survey of Papua New Guinea, 1981.
MLA (9th ed.) CitationGeological Survey of Papua New Guinea, et al. Cooke-Ravian Volume of Volcanological Papers. Geological Survey of Papua New Guinea, 1981.
Warning: These citations may not always be 100% accurate.