Peterson, N. P., & Swanson, R. W. (1956). Geology of the Christmas copper mine, Gila County, Arizona. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationPeterson, N. P., and Roger Warren Swanson. Geology of the Christmas Copper Mine, Gila County, Arizona. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1956.
MLA (9th ed.) CitationPeterson, N. P., and Roger Warren Swanson. Geology of the Christmas Copper Mine, Gila County, Arizona. United States Department of the Interior, Geological Survey, 1956.
Warning: These citations may not always be 100% accurate.