Não informado. (1981). Environmental Monitoring and Assessment. Kluwer Academic Publishers.
Chicago-Zitierstil (17. Ausg.)Não informado. Environmental Monitoring and Assessment. Dordrecht, Holanda: Kluwer Academic Publishers, 1981.
MLA-Zitierstil (8. Ausg.)Não informado. Environmental Monitoring and Assessment. Kluwer Academic Publishers, 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.