APA (7th ed.) Citation

Macdonald, G. A., & Orr, J. B. (1950). The 1949 summit eruption of Mauna Loa, Hawaii. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Macdonald, Gordon A., and James B. Orr. The 1949 Summit Eruption of Mauna Loa, Hawaii. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1950.

MLA (9th ed.) Citation

Macdonald, Gordon A., and James B. Orr. The 1949 Summit Eruption of Mauna Loa, Hawaii. United States Department of the Interior, Geological Survey, 1950.