Não informado. (2020). Research Reports. Smithsonian Institution, Office of Public Affairs.
Chicago (17e ed.) BronvermeldingNão informado. Research Reports. Washington: Smithsonian Institution, Office of Public Affairs, 2020.
MLA (8e ed.) BronvermeldingNão informado. Research Reports. Smithsonian Institution, Office of Public Affairs, 2020.
Let op: Deze citaties zijn niet altijd 100% accuraat.