Παραπομπή APA

Beetle, C. (1949). A.L.A. Cataloging Rules for Author and Title Entries (2nd.). Chicago: American Library Association.

Παραπομπή Chicago Style

Beetle, Clara. A.L.A. Cataloging Rules for Author and Title Entries. 2nd. Chicago: American Library Association, 1949.

Παραπομπή MLA

Beetle, Clara. A.L.A. Cataloging Rules for Author and Title Entries. 2nd. Chicago: American Library Association, 1949.

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