APA (7th ed.) Citation

Sheldon, R. P. (1963). Physical stratigraphy and mineral resources of Permian rocks in Western Wyoming. [publisher not identified].

Chicago Style (17th ed.) Citation

Sheldon, Richard Porter. Physical Stratigraphy and Mineral Resources of Permian Rocks in Western Wyoming. [Place of publication not identified]: [publisher not identified], 1963.

MLA (9th ed.) Citation

Sheldon, Richard Porter. Physical Stratigraphy and Mineral Resources of Permian Rocks in Western Wyoming. [publisher not identified], 1963.