Não informado. (2021). Unesco Bulletin for Libraries. United Nations Educational, Scientific and Cultural Organization (Unesco).
Chicago (17e ed.) BronvermeldingNão informado. Unesco Bulletin for Libraries. Paris: United Nations Educational, Scientific and Cultural Organization (Unesco), 2021.
MLA (8e ed.) BronvermeldingNão informado. Unesco Bulletin for Libraries. United Nations Educational, Scientific and Cultural Organization (Unesco), 2021.
Let op: Deze citaties zijn niet altijd 100% accuraat.