APA (7. basım) Alıntı

Gredley, E. (1990). Exchanging bibliographic data: MARC and other international formats. Canadian Library Association.

Chicago Style (17. basım) Atıf

Gredley, Ellen. Exchanging Bibliographic Data: MARC and Other International Formats. Ottawa: Canadian Library Association, 1990.

MLA (9th ed.) Atıf

Gredley, Ellen. Exchanging Bibliographic Data: MARC and Other International Formats. Canadian Library Association, 1990.