APA (7th ed.) Citation

Hartkemeier, H. P. (1952). Punch-card methods: How to use and operate punching, sorting, electronic statistical, tabulating, and accounting machines, including types 24, 26, 75, 80, 82, 101, 402, 403, and 407. W.C. Brown Co..

Chicago Style (17th ed.) Citation

Hartkemeier, Harry P. Punch-card Methods: How to Use and Operate Punching, Sorting, Electronic Statistical, Tabulating, and Accounting Machines, Including Types 24, 26, 75, 80, 82, 101, 402, 403, and 407. Dubuque, Iowa: W.C. Brown Co., 1952.

MLA (9th ed.) Citation

Hartkemeier, Harry P. Punch-card Methods: How to Use and Operate Punching, Sorting, Electronic Statistical, Tabulating, and Accounting Machines, Including Types 24, 26, 75, 80, 82, 101, 402, 403, and 407. W.C. Brown Co., 1952.