APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Gredley, Ellen, and Alan Hopkinson. Exchanging Bibliographic Data: MARC and Other International Formats. Ottawa London Chicago: Canadian Library Association Library Association American Library Association, 1990.

MLA (8th ed.) Citation

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