Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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