APA (7th ed.) Citation

Brown, C. M. (1975). Definitions of stratigraphic names on the Yule 1: 250,000 sheet. Office of Minerals and Energy.

Chicago Style (17th ed.) Citation

Brown, C. M. Definitions of Stratigraphic Names on the Yule 1: 250,000 Sheet. [Port Moresby]: Office of Minerals and Energy, 1975.

MLA (9th ed.) Citation

Brown, C. M. Definitions of Stratigraphic Names on the Yule 1: 250,000 Sheet. Office of Minerals and Energy, 1975.