Παραπομπή APA

Philippakis, A. S., & Kazmier, L. J. (1978). Information systems through cobol (2nd ed.). McGraw-Hill.

Παραπομπή Chicago Style

Philippakis, Andreas S., και Leonard J. Kazmier. Information Systems Through Cobol. 2nd ed. Auckland: McGraw-Hill, 1978.

Παραπομπή MLA

Philippakis, Andreas S., και Leonard J. Kazmier. Information Systems Through Cobol. 2nd ed. McGraw-Hill, 1978.