APA (7th ed.) Citation

United States. Bureau of the Census. (1930). Fifteenth Census. Punching instructions for population schedule, individual card. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

United States. Bureau of the Census. Fifteenth Census. Punching Instructions for Population Schedule, Individual Card. [Washington?]: U.S. Government Printing Office, 1930.

MLA (9th ed.) Citation

United States. Bureau of the Census. Fifteenth Census. Punching Instructions for Population Schedule, Individual Card. U.S. Government Printing Office, 1930.

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