APA (7th ed.) Citation

Knobel, E. W., & Brensing, O. H. (1938). Soil survey of McIntosh county, Oklahoma. [U. S. Govt. Print. Off].

Chicago Style (17th ed.) Citation

Knobel, E. W., and O. H. Brensing. Soil Survey of McIntosh County, Oklahoma. Washington: [U. S. Govt. Print. Off], 1938.

MLA (9th ed.) Citation

Knobel, E. W., and O. H. Brensing. Soil Survey of McIntosh County, Oklahoma. [U. S. Govt. Print. Off], 1938.