United States. Environmental Protection Agency. (2005). Site characterization library: Version 3.0. Environmental Protection Agency.
Chicago-Zitierstil (17. Ausg.)United States. Environmental Protection Agency. Site Characterization Library: Version 3.0. Cincinnati, OH: Environmental Protection Agency, 2005.
MLA-Zitierstil (9. Ausg.)United States. Environmental Protection Agency. Site Characterization Library: Version 3.0. Environmental Protection Agency, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.