Não informado. (1981). Ground Water Monitoring Review. Water Well Journal Publishing.
Chicago-referens (17:e uppl.)Não informado. Ground Water Monitoring Review. Worthington, Ohio: Water Well Journal Publishing, 1981.
MLA-referens (8:e uppl.)Não informado. Ground Water Monitoring Review. Water Well Journal Publishing, 1981.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.