APA (7th ed.) Citation

Grainger, D. J. (1969). Coal occurrences in Papua New Guinea. Dept. of Lands, Surveys and Mines, Geological and Volcanological Branch.

Chicago Style (17th ed.) Citation

Grainger, D. J. Coal Occurrences in Papua New Guinea. [Port Moresby]: Dept. of Lands, Surveys and Mines, Geological and Volcanological Branch, 1969.

MLA (9th ed.) Citation

Grainger, D. J. Coal Occurrences in Papua New Guinea. Dept. of Lands, Surveys and Mines, Geological and Volcanological Branch, 1969.