000 00333cam a22001217a 4500
008 180718b1971 xxu||||| |||| 00| 0 eng d
020 _a11 721423 x
082 _aX2x42 Un3
245 _aProject network analysis
_cBy The building research station
260 _aGarston
_bHMSO
_c1971
300 _a7p.
650 _aCritical path analysis
999 _c413095
_d413095