Dwivedi, D N. Managerial economics / D.N. Dwivedi. - 6th rev. ed / . - New Delhi : Vikas Publishing House , 2003. - xx,525p. : ill.,figs. ; 22cm . NULL ISBN: 8125910042 Rs.395.00 Subjects--Index Terms: MANAGERIAL ECONOMICS Dewey Class. No.: 338.5024658 / DWI/M