APA (7th ed.) Citation

United States. Bureau of the Census. (1915). Index to occupations, alphabetical and classified. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

United States. Bureau of the Census. Index to Occupations, Alphabetical and Classified. [Washington?]: U.S. Government Printing Office, 1915.

MLA (9th ed.) Citation

United States. Bureau of the Census. Index to Occupations, Alphabetical and Classified. U.S. Government Printing Office, 1915.

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