Gredley, E., & Hopkinson, A. (1990). Exchanging bibliographic data: MARC and other international formats. Ottawa : London: Canadian Library Association ; The Library Association.
Παραπομπή Chicago StyleGredley, Ellen, and Alan Hopkinson. Exchanging Bibliographic Data: MARC and Other International Formats. Ottawa : London: Canadian Library Association ; The Library Association, 1990.
Παραπομπή MLAGredley, Ellen, and Alan Hopkinson. Exchanging Bibliographic Data: MARC and Other International Formats. Ottawa : London: Canadian Library Association ; The Library Association, 1990.
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