APA (7th ed.) Citation

Demas, G. P., Burns, J. L., & Hall, R. L. (2004). Soil survey of Worcester County, Maryland ([Updated and revised].). Natural Resources Conservation Service.

Chicago Style (17th ed.) Citation

Demas, George P., John L. Burns, and Richard L. Hall. Soil Survey of Worcester County, Maryland. [Updated and revised]. [Washington, D.C.]: Natural Resources Conservation Service, 2004.

MLA (9th ed.) Citation

Demas, George P., et al. Soil Survey of Worcester County, Maryland. [Updated and revised]. Natural Resources Conservation Service, 2004.