APA (7th ed.) Citation

Geological Survey (U.S.), Haney, E. M., & Grolier, M. J. (1991). Geologic map of major Quaternary eolian features, northern and central coastal Peru. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Eileen M. Haney, and Maurice J. Grolier. Geologic Map of Major Quaternary Eolian Features, Northern and Central Coastal Peru. Reston, Va.: The Survey, 1991.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic Map of Major Quaternary Eolian Features, Northern and Central Coastal Peru. The Survey, 1991.