Não informado. (1972). Hungarian Library and Information Science Abstracts. National Széchényi Library, Centre for Library Science and Methodology.
Čikaški stil citiranja (17. izdanje)Não informado. Hungarian Library and Information Science Abstracts. Budapest: National Széchényi Library, Centre for Library Science and Methodology, 1972.
MLA način citiranja (8. izdanje)Não informado. Hungarian Library and Information Science Abstracts. National Széchényi Library, Centre for Library Science and Methodology, 1972.
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