Não informado. (1971). Abstracts of hungarian economic literature. Hungarian Scientific Council for World Economy.
Chicago-referens (17:e uppl.)Não informado. Abstracts of Hungarian Economic Literature. Budapest: Hungarian Scientific Council for World Economy, 1971.
MLA-referens (8:e uppl.)Não informado. Abstracts of Hungarian Economic Literature. Hungarian Scientific Council for World Economy, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.