Gredley, E., & Hopkinson, A. (1990). Exchanging bibliographic data: MARC and other international formats. Canadian Library Association ; Library Association ; American Library Association.
Cita Chicago Style (17a ed.)Gredley, Ellen, y A. Hopkinson. Exchanging Bibliographic Data: MARC and Other International Formats. Ottawa : London : Chicago: Canadian Library Association ; Library Association ; American Library Association, 1990.
Cita MLA (9a ed.)Gredley, Ellen, y A. Hopkinson. Exchanging Bibliographic Data: MARC and Other International Formats. Canadian Library Association ; Library Association ; American Library Association, 1990.
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