United Nations Population Fund & Marshall, A. (1998). The state of world population 1998: The new generations. UNFPA.
Chicago (17e ed.) BronvermeldingUnited Nations Population Fund en Alex Marshall. The State of World Population 1998: The New Generations. New York: UNFPA, 1998.
MLA (8e ed.) BronvermeldingUnited Nations Population Fund en Alex Marshall. The State of World Population 1998: The New Generations. UNFPA, 1998.
Let op: Deze citaties zijn niet altijd 100% accuraat.