APA Citation

Gray, J. E. (2003). Geologic Studies of mercury by the U.S. Geological Survey. US Geological Survey circular 1248.

Chicago Style Citation

Gray, John E. "Geologic Studies of Mercury By the U.S. Geological Survey." US Geological Survey Circular 1248 2003.

MLA Citation

Gray, John E. "Geologic Studies of Mercury By the U.S. Geological Survey." US Geological Survey Circular 1248 2003.

Warning: These citations may not always be 100% accurate.