Não informado. (1971). Abstracts of hungarian economic literature. Hungarian Scientific Council for World Economy.
Chicago (17e ed.) BronvermeldingNão informado. Abstracts of Hungarian Economic Literature. Budapest: Hungarian Scientific Council for World Economy, 1971.
MLA (8e ed.) BronvermeldingNão informado. Abstracts of Hungarian Economic Literature. Hungarian Scientific Council for World Economy, 1971.
Let op: Deze citaties zijn niet altijd 100% accuraat.