Buleka, J., & King, J. (1988). Geological mapping of Manugoro quarry, Central Province. Geological Survey of Papua New Guinea.
Chicago-viite (17. p.)Buleka, J., ja J. King. Geological Mapping of Manugoro Quarry, Central Province. Port Moresby: Geological Survey of Papua New Guinea, 1988.
MLA-viite (9. p.)Buleka, J., ja J. King. Geological Mapping of Manugoro Quarry, Central Province. Geological Survey of Papua New Guinea, 1988.
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