00533nam a2200169 a 450000500170000002000140001708200180003110000190004924500970006826000280016530000230019369000260021696400230024299700180026599900170028395200630030020251203090729.0  a817099022  a658.1554bCHA  aChawla,Krishan  aSocial cost benefit analysis: an introduction to financial and economic appraisal of project  aNew DelhibMittalc1987  ax, 219p.c24cm. HB  aCost benefit analysis  bENGLISHcdefg_  a21223 LIBSS C  c17992d17992  00104070aPUbPUd1998-12-16l0o658.1554 CHAp21223yBK