APA (7th ed.) Citation

(1987). Geologic map of the Aztec 1 ̊x 2 ̊quadrangle, Northwestern New Mexico and Southern Colorado. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geologic Map of the Aztec 1 ̊x 2 ̊quadrangle, Northwestern New Mexico and Southern Colorado. Denver, CO: U.S. Geological Survey, 1987.

MLA (9th ed.) Citation

Geologic Map of the Aztec 1 ̊x 2 ̊quadrangle, Northwestern New Mexico and Southern Colorado. U.S. Geological Survey, 1987.