000 00272 a2200121 4500
082 _a620
_bP972en
100 _a
_d
245 1 _aENGINERING EXTENSION SERIES
260 _a
_b
_c
440 _aEngineering Extension Series
_vNo. 147
964 _gCIRC
997 _aA51615 s C
999 _c469719
_d469719