APA (7th ed.) Citation

Lewis, B. D., & Hotchkiss, W. R. (1981). Thickness, percent sand, and configuration of shallow hydrogeologic units in the Powder River Basin, Montana and Wyoming. The Survey.

Chicago Style (17th ed.) Citation

Lewis, Barney D., and W. R. Hotchkiss. Thickness, Percent Sand, and Configuration of Shallow Hydrogeologic Units in the Powder River Basin, Montana and Wyoming. Reston, Va.: The Survey, 1981.

MLA (9th ed.) Citation

Lewis, Barney D., and W. R. Hotchkiss. Thickness, Percent Sand, and Configuration of Shallow Hydrogeologic Units in the Powder River Basin, Montana and Wyoming. The Survey, 1981.