- Author: United States
- Language: English
- Year: 1992
- Author: United States. Bureau of Reclamation
- Language: English
- Year: 1973
- Author: United States Army
- Language: English
- Year: 1985
- Author: United States Gypsum USG Corporation
- Language: English
- Year: 2000
- Author: United States Department of Agriculture
- Language: English
- Year: 2002
- Author: United States Public Health Service
- Language: English
- Year: 2000
- Author: Office of Technology Assessment Congress of the United States
- Language: English
- Year: 2005
- Author: United States Army Combined Arms Support Command
- Language: English
- Year: 2001
- Author: United States
- Language: English
- Year: 1991