Preliminary lists of subject headings with local subdivision:
(A) headings with indirect subdivision; (B) headings with direct subdivision; and (C) preliminary list of local divisions (states, provinces, etc.) to which subdivision is always direct.
Comp. by Mary W. MacNair, Catalogue Division.

APA Citation

Library of Congress. Catalog Division., MacNair, M. Wilson. (1916). Preliminary lists of subject headings with local subdivision: (A) headings with indirect subdivision; (B) headings with direct subdivision; and (C) preliminary list of local divisions (states, provinces, etc.) to which subdivision is always direct. Washington: Govt. Print. Off., Library Branch.

MLA Citation

Library of Congress. Catalog Division, and Mary Wilson MacNair. Preliminary Lists of Subject Headings With Local Subdivision: (A) Headings With Indirect Subdivision; (B) Headings With Direct Subdivision; And (C) Preliminary List of Local Divisions (states, Provinces, Etc.) to Which Subdivision Is Always Direct. Washington: Govt. Print. Off., Library Branch, 1916.

Warning: These citations may not always be complete (especially for serials).