000 002890000a22001330004500
245 _aInvestment appraisal
110 _aNational Economic Development Office
250 _a4th ed.
260 _aLondon
_c1971
300 _a30 p.
080 _a332.6
_bN3
041 _aEN
942 _cBK
999 _c105865
_d105865