APA (7th ed.) Citation

Vasilas, L. M., Hurt, G. W., & Berkowitz, J. F. (2017). Field indicators of hydric soils in the United States: A guide for identifying and delineating hydric soils (Version 8.1, 2017.). United States Department of Agriculture, Natural Resources Conservation Service.

Chicago Style (17th ed.) Citation

Vasilas, L. M., G. Wade Hurt, and Jacob F. Berkowitz. Field Indicators of Hydric Soils in the United States: A Guide for Identifying and Delineating Hydric Soils. Version 8.1, 2017. [Washington, D.C.]: United States Department of Agriculture, Natural Resources Conservation Service, 2017.

MLA (8th ed.) Citation

Vasilas, L. M., et al. Field Indicators of Hydric Soils in the United States: A Guide for Identifying and Delineating Hydric Soils. Version 8.1, 2017. United States Department of Agriculture, Natural Resources Conservation Service, 2017.