000 00420nam a2200205Ia 4500
008 181031s9999 xx 000 0 und d
082 _a690
082 _bWAL
100 _aWalker Derek
245 _aGreat Engineers. (Reference Document)
250 _a3rd.
260 _bAcademy Editions
260 _c1987
300 _a288p.
365 _b0
365 _d0
365 _e0
650 _aStructures
942 _cBK
999 _c49
_d49