APA (7th ed.) Citation

Robbins, J. M. (1969). Soil survey of Perry County, Indiana. U.S. Department of agriculture, Soil conservation service.

Chicago Style (17th ed.) Citation

Robbins, John M. Soil Survey of Perry County, Indiana. Washington: U.S. Department of agriculture, Soil conservation service, 1969.

MLA (9th ed.) Citation

Robbins, John M. Soil Survey of Perry County, Indiana. U.S. Department of agriculture, Soil conservation service, 1969.

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