Buleka, J., & King, J. (1988). Geological mapping of Manugoro quarry, Central Province. Geological Survey of Papua New Guinea.
Chicago Style aipamenaBuleka, J., and J. King. Geological Mapping of Manugoro Quarry, Central Province. Port Moresby: Geological Survey of Papua New Guinea, 1988.
MLA aipamenaBuleka, J., and J. King. Geological Mapping of Manugoro Quarry, Central Province. Geological Survey of Papua New Guinea, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.