Cita APA (7a ed.)

Crawford, F. R. (1968). Introduction to data processing. Prentice-Hall.

Cita Chicago Style (17a ed.)

Crawford, F. Robert. Introduction to Data Processing. Englewood Cliffs, N.J: Prentice-Hall, 1968.

Cita MLA (9a ed.)

Crawford, F. Robert. Introduction to Data Processing. Prentice-Hall, 1968.