APA (7e ed.) Bronvermelding

Não informado. (1972). Hungarian Library and Information Science Abstracts. National Széchényi Library, Centre for Library Science and Methodology.

Chicago (17e ed.) Bronvermelding

Não informado. Hungarian Library and Information Science Abstracts. Budapest: National Széchényi Library, Centre for Library Science and Methodology, 1972.

MLA (8e ed.) Bronvermelding

Não informado. Hungarian Library and Information Science Abstracts. National Széchényi Library, Centre for Library Science and Methodology, 1972.

Let op: Deze citaties zijn niet altijd 100% accuraat.