APA (7e ed.) Bronvermelding

Gleim, G. A. (1971). Electronic data processing systems and procedures. Prentice-Hall, Inc.

Chicago (17e ed.) Bronvermelding

Gleim, George A. Electronic Data Processing Systems and Procedures. Englewood Cliffs, New Jersey: Prentice-Hall, Inc, 1971.

MLA (9e ed.) Bronvermelding

Gleim, George A. Electronic Data Processing Systems and Procedures. Prentice-Hall, Inc, 1971.