000 00355pam a2200157a 44500
008 230515b1980 xxu||||| |||| 00| 0 eng d
020 _aNULL
041 _aNULL
082 _a620.1/NEL
100 _aNELSON E.W.
245 _aENGG MECHANICS (STATIC?S &DYNAMICS)
250 _a3
260 _aNULL
_bMc. G
_c1980
300 _a"""408
650 _a43.45
999 _c614318
_d614318