Cita APA (7a ed.)

Hartkemeier, H. P. (1966). Data processing: How to program and operate punching, sorting, accounting, and electronic statistical machines, including IBM types 24, 26, 59, 82, 83, 85, 101, 402, 403, 407, 514 and 557. Wiley.

Cita Chicago Style (17a ed.)

Hartkemeier, Harry P. Data Processing: How to Program and Operate Punching, Sorting, Accounting, and Electronic Statistical Machines, Including IBM Types 24, 26, 59, 82, 83, 85, 101, 402, 403, 407, 514 and 557. New York: Wiley, 1966.

Cita MLA (9a ed.)

Hartkemeier, Harry P. Data Processing: How to Program and Operate Punching, Sorting, Accounting, and Electronic Statistical Machines, Including IBM Types 24, 26, 59, 82, 83, 85, 101, 402, 403, 407, 514 and 557. Wiley, 1966.