American Library Association. Division of Cataloging and Classification, American Library Association. Catalog Code Revision Committee. A. L. A. catalog rules, author and title entries, Author, Beetle, Clara, 1891- ed, & Catalog rules, author and title entries. (1949). A.L.A. cataloging rules for author and title entries 2nd (2nd ed.). American Library Assn.

American Library Association. Division of Cataloging and Classification, author and title entries American Library Association. Catalog Code Revision Committee. A. L. A. catalog rules, Author, Clara Beetle, a author and title entries Catalog rules. A.L.A. Cataloging Rules for Author and Title Entries 2nd. 2nd ed. Chicago: American Library Assn, 1949.

American Library Association. Division of Cataloging and Classification, et al. A.L.A. Cataloging Rules for Author and Title Entries 2nd. 2nd ed. American Library Assn, 1949.