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Regulations and instructions of the United States Geological Survey.

APA Citation

Geological Survey (U.S.). (1911). Regulations and instructions of the United States Geological Survey. Washington: Govt. Printing Office.

Geological Survey (U.S.). Regulations And Instructions of the United States Geological Survey. Washington: Govt. Printing Office, 1911.

Warning: These citations may not always be complete (especially for serials).