Philippakis, A. S. (1974). Information systems through COBOL/2nd ed (2nd ed.). McGraw-Hill.
Chicago Edition CitationPhilippakis, Andreas S. Information Systems Through COBOL/2nd Ed. 2nd ed. Auckland: McGraw-Hill, 1974.
Deismireacht MLAPhilippakis, Andreas S. Information Systems Through COBOL/2nd Ed. 2nd ed. McGraw-Hill, 1974.
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