APA (7th ed.) Citation

Library of Congress. Catalog Division. (1912). Preliminary list of language subdivisions. [publisher not identified].

Chicago Style (17th ed.) Citation

Library of Congress. Catalog Division. Preliminary List of Language Subdivisions. Washington: [publisher not identified], 1912.

MLA (9th ed.) Citation

Library of Congress. Catalog Division. Preliminary List of Language Subdivisions. [publisher not identified], 1912.

Warning: These citations may not always be 100% accurate.