Não informado. (1981). Ground Water Monitoring Review. Water Well Journal Publishing.
Chicago-Zitierstil (17. Ausg.)Não informado. Ground Water Monitoring Review. Worthington, Ohio: Water Well Journal Publishing, 1981.
MLA-Zitierstil (8. Ausg.)Não informado. Ground Water Monitoring Review. Water Well Journal Publishing, 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.