APA (7e ed.) Bronvermelding

Buleka, J., & King, J. (1988). Geological mapping of Manugoro quarry, Central Province. Geological Survey of Papua New Guinea.

Chicago (17e ed.) Bronvermelding

Buleka, J., en J. King. Geological Mapping of Manugoro Quarry, Central Province. Port Moresby: Geological Survey of Papua New Guinea, 1988.

MLA (9e ed.) Bronvermelding

Buleka, J., en J. King. Geological Mapping of Manugoro Quarry, Central Province. Geological Survey of Papua New Guinea, 1988.