Cita APA (7th ed.)

Langenbach, R. G. (1968). Introduction to automated data processing. Prentice-Hall.

Cita Chicago (17th ed.)

Langenbach, Robert G. Introduction to Automated Data Processing. Englewood Cliffs, N.J.: Prentice-Hall, 1968.

Cita MLA (8th ed.)

Langenbach, Robert G. Introduction to Automated Data Processing. Prentice-Hall, 1968.