Dyfyniad APA

American Library Association. Audio-visual Committee. (1975). Guidelines for audio-visual materials and services for large public libraries. The Association.

Dyfyniad Arddull Chicago

American Library Association. Audio-visual Committee. Guidelines for Audio-visual Materials and Services for Large Public Libraries. Chicago: The Association, 1975.

Dyfyniad MLA

American Library Association. Audio-visual Committee. Guidelines for Audio-visual Materials and Services for Large Public Libraries. The Association, 1975.

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