00403nam a2200157Ia 4500008004100000020001500041041000800056082001900064100001600083245003400099260005500133300000800188365001300196650001200209700002400221140306s9999    xx            000 0 und d  a0801818184  aeng  a658.15bSQU/EC  aSquire, Lyn  aEconomic analysis of projects  aBaltimorebThe john Hopkins university pressc1992  a153  bUSD.9.45  aI B R D  aVan der Tak, Herman