National Institute of Public Health and Environmental Protection. (1992). The environment in Europe: A global perspective. RIVM, National Institute of Public Health and Environmental Protection.
Chicago-referens (17:e uppl.)National Institute of Public Health and Environmental Protection. The Environment in Europe: A Global Perspective. The Netherlands: RIVM, National Institute of Public Health and Environmental Protection, 1992.
MLA-referens (9:e uppl.)National Institute of Public Health and Environmental Protection. The Environment in Europe: A Global Perspective. RIVM, National Institute of Public Health and Environmental Protection, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.