APA (7th ed.) Citation

Geological Survey (U.S.), Higley, D. K., Gautier, D. L., & Mast, R. F. (1987). Exploration intensity map of the Upper Cretaceous D Sandstone, Denver Basin, Colorado, Nebraska, and Wyoming. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Debra K. Higley, Donald L. Gautier, and Richard F. Mast. Exploration Intensity Map of the Upper Cretaceous D Sandstone, Denver Basin, Colorado, Nebraska, and Wyoming. [Reston, Va.]: The Survey, 1987.

MLA (8th ed.) Citation

Geological Survey (U.S.), et al. Exploration Intensity Map of the Upper Cretaceous D Sandstone, Denver Basin, Colorado, Nebraska, and Wyoming. The Survey, 1987.