UNEP, U. (2002). Children in the new millenium: Environmental impact on health. UNEP.
Chicago Style (17th ed.) ZitazioaUNEP, UNICEF. Children in the New Millenium: Environmental Impact on Health. Nairobi: UNEP, 2002.
MLA (9th ed.) ZitazioaUNEP, UNICEF. Children in the New Millenium: Environmental Impact on Health. UNEP, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.