APA aipamena

Philippakis, A. S. (1978). Information System Through Cobol (Ed.2.). Mcgraw Hill Book Company.

Chicago Style aipamena

Philippakis, Andreas S. Information System Through Cobol. Ed.2. Mcgraw Hill Book Company, 1978.

MLA aipamena

Philippakis, Andreas S. Information System Through Cobol. Ed.2. Mcgraw Hill Book Company, 1978.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.