000 00604nam a2200193Ia 4500
919 _a047744
082 _a620.0016
_bN74;1 "R"
245 _aEngineering sciences data unit
_bIndex 1974
_cby Engineering Sciences Data Unit
260 _aLondon
_bEngineering Sciences Data Unit
_c1974
300 _apv.
690 _aESDU; Engineering-indexes
999 _c45988
_d45988