Cita APA (7a ed.)

Spencer, D. D. (1977). Introduction to information processing (Second edition.). Charles E. Merrill Publishing Company : A Bell and Howell company.

Cita Chicago Style (17a ed.)

Spencer, Donald D.. Introduction to Information Processing. Second edition. Columbus [i 3 pozostałe]: Charles E. Merrill Publishing Company : A Bell and Howell company, 1977.

Cita MLA (9a ed.)

Spencer, Donald D.. Introduction to Information Processing. Second edition. Charles E. Merrill Publishing Company : A Bell and Howell company, 1977.