APA Citation

Amsden, T. W., & Amsden, T. W. (1975). Structure map of Sylvan Shale in Central and Western Oklahoma. Oklahoma: Oklahoma Geological Survey.

Chicago Style Citation

Amsden, Thomas William, and Thomas William Amsden. Structure Map of Sylvan Shale in Central and Western Oklahoma. Oklahoma: Oklahoma Geological Survey, 1975.

MLA Citation

Amsden, Thomas William, and Thomas William Amsden. Structure Map of Sylvan Shale in Central and Western Oklahoma. Oklahoma: Oklahoma Geological Survey, 1975.

Warning: These citations may not always be 100% accurate.