APA (7th ed.) Citation

Cooke, R. J. S., & Johnson, R. W. (1978). Volcanoes and volcanology in Papua New Guinea. Dept. of Minerals and Energy.

Chicago Style (17th ed.) Citation

Cooke, R. J. S., and R. W. Johnson. Volcanoes and Volcanology in Papua New Guinea. [Port Moresby]: Dept. of Minerals and Energy, 1978.

MLA (9th ed.) Citation

Cooke, R. J. S., and R. W. Johnson. Volcanoes and Volcanology in Papua New Guinea. Dept. of Minerals and Energy, 1978.