APA (7th ed.) Citation

United States. Bureau of the Census. (1911). Thirteenth Census of U.S. Index to occupations. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of the Census. Thirteenth Census of U.S. Index to Occupations. Washington, D.C.: [publisher not identified], 1911.

MLA (9th ed.) Citation

United States. Bureau of the Census. Thirteenth Census of U.S. Index to Occupations. [publisher not identified], 1911.