APA (7th ed.) Citation

Oklahoma Geological Survey, Cross, H., Stevens, G. W., & Shannon, C. W. (1917). Animal and plant life in Oklahoma. [publisher not identified].

Chicago Style (17th ed.) Citation

Oklahoma Geological Survey, Howard Cross, George Walter Stevens, and C. W. Shannon. Animal and Plant Life in Oklahoma. Norman: [publisher not identified], 1917.

MLA (9th ed.) Citation

Oklahoma Geological Survey, et al. Animal and Plant Life in Oklahoma. [publisher not identified], 1917.