APA (7th ed.) Citation

(1965). Geologic map of North America. United States Geolog.Survey.

Chicago Style (17th ed.) Citation

Geologic Map of North America. Washington, DC: United States Geolog.Survey, 1965.

MLA (9th ed.) Citation

Geologic Map of North America. United States Geolog.Survey, 1965.

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