APA (7th ed.) Citation

Davies, R. A., & Palfreyman, W. D. (1971). Eruptive history of Mount Langila volcano, New Britain, up to 1970, with notes on instrumental observations. Geological Survey.

Chicago Style (17th ed.) Citation

Davies, R. A., and W. D. Palfreyman. Eruptive History of Mount Langila Volcano, New Britain, Up to 1970, with Notes on Instrumental Observations. [Port Moresby]: Geological Survey, 1971.

MLA (9th ed.) Citation

Davies, R. A., and W. D. Palfreyman. Eruptive History of Mount Langila Volcano, New Britain, Up to 1970, with Notes on Instrumental Observations. Geological Survey, 1971.