000 002690000a22001210004500
008 160429b1951 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a620
_bL4
942 _cBK
100 _aLeach, H.W.
245 _aElementary problems in engineering
260 _c1951
999 _c8367
_d8367