Tweto, O. (1987). Rock units of the Precambrian basement in Colorado: Description and distribution of Proterozoic and Archean metamorphic and igneous rocks in outcrop and the buried basement in Colorado. US Gov. Print. Off.
Chicago Style (17th ed.) CitationTweto, Ogden. Rock Units of the Precambrian Basement in Colorado: Description and Distribution of Proterozoic and Archean Metamorphic and Igneous Rocks in Outcrop and the Buried Basement in Colorado. Washington: US Gov. Print. Off, 1987.
MLA (9th ed.) CitationTweto, Ogden. Rock Units of the Precambrian Basement in Colorado: Description and Distribution of Proterozoic and Archean Metamorphic and Igneous Rocks in Outcrop and the Buried Basement in Colorado. US Gov. Print. Off, 1987.
Warning: These citations may not always be 100% accurate.