Cita APA (7th ed.)

Philippakis, A. S., & Kazmier, L. J. (1974). Information systems through Cobol. McGraw-Hill Book Company.

Cita Chicago (17th ed.)

Philippakis, Andreas S., i Leonard J. Kazmier. Information Systems Through Cobol. New York: McGraw-Hill Book Company, 1974.

Cita MLA (9th ed.)

Philippakis, Andreas S., i Leonard J. Kazmier. Information Systems Through Cobol. McGraw-Hill Book Company, 1974.