Não informado. (1971). Science and government report. Science and Government Reports.
Chicago (17e ed.) BronvermeldingNão informado. Science and Government Report. Washington: Science and Government Reports, 1971.
MLA (8e ed.) BronvermeldingNão informado. Science and Government Report. Science and Government Reports, 1971.
Let op: Deze citaties zijn niet altijd 100% accuraat.