Παραπομπή APA

Philippakis A S Leonard J Kazmier. (1985). Advanced cobol. McGraw Hill.

Παραπομπή Chicago Style

Philippakis A S Leonard J Kazmier. Advanced Cobol. New York: McGraw Hill, 1985.

Παραπομπή MLA

Philippakis A S Leonard J Kazmier. Advanced Cobol. McGraw Hill, 1985.