(2002). Assessing ground water vulnerability to contamination: Providing scientifically defensible information for decision makers. U.S. Geological Survey.
Chicago-Zitierstil (17. Ausg.)Assessing Ground Water Vulnerability to Contamination: Providing Scientifically Defensible Information for Decision Makers. Denver, CO: U.S. Geological Survey, 2002.
MLA-Zitierstil (9. Ausg.)Assessing Ground Water Vulnerability to Contamination: Providing Scientifically Defensible Information for Decision Makers. U.S. Geological Survey, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.