CLISSON T.H, . (1985). INTRODUCTION TO SYSTEM ANALYSIS. NEW YORK: MCGRAW-HILL BOOK CO.
CLISSON T.H, . 1985. INTRODUCTION TO SYSTEM ANALYSIS. NEW YORK: MCGRAW-HILL BOOK CO.
CLISSON T.H, . INTRODUCTION TO SYSTEM ANALYSIS. NEW YORK: MCGRAW-HILL BOOK CO. 1985.