APA (7th ed.) Citation

Tweto, O. (1977). Nomenclature of Precambrian rocks in Colorado.

Chicago Style (17th ed.) Citation

Tweto, Ogden. Nomenclature of Precambrian Rocks in Colorado. 1977.

MLA (9th ed.) Citation

Tweto, Ogden. Nomenclature of Precambrian Rocks in Colorado. 1977.

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