APA (7th ed.) Citation

Denson, N. M., & Horn, G. H. (1976). Geologic and structure map of the southern part of the Powder River Basin, Converse, Niobrara, and Natrona counties, Wyoming. The Survey.

Chicago Style (17th ed.) Citation

Denson, N. M., and George H. Horn. Geologic and Structure Map of the Southern Part of the Powder River Basin, Converse, Niobrara, and Natrona Counties, Wyoming. Reston, Va.: The Survey, 1976.

MLA (9th ed.) Citation

Denson, N. M., and George H. Horn. Geologic and Structure Map of the Southern Part of the Powder River Basin, Converse, Niobrara, and Natrona Counties, Wyoming. The Survey, 1976.