000 002570000a22001210004500
008 160512b1948 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a926.2
_bW3
942 _cBK
100 _aWalton, J.
245 _aSeven civil engineers
260 _c1948
999 _c9071
_d9071