APA (7th ed.) Citation

Geological Survey (U.S.). (1937). Geological Survey [annual report, fiscal year 1938]. [s.n.].

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). Geological Survey [annual Report, Fiscal Year 1938]. [Washington]: [s.n.], 1937.

MLA (9th ed.) Citation

Geological Survey (U.S.). Geological Survey [annual Report, Fiscal Year 1938]. [s.n.], 1937.

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