APA (7th ed.) Citation

Geological Survey (U.S.), Mytton, J. W., & Schneider, G. B. (1987). Interpretive geology of the Chaco area, northwestern New Mexico. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), James W. Mytton, and Gary B. Schneider. Interpretive Geology of the Chaco Area, Northwestern New Mexico. Reston, Va.: The Survey, 1987.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Interpretive Geology of the Chaco Area, Northwestern New Mexico. The Survey, 1987.