000 002590000a22001210004500
080 _a511
_bC6
100 _aClapham, C.B.
245 _aArithmatic of engineers
250 _a2nd ed.
260 _aLondon
_bChapman & Hall
_c1919
300 _a465p.
942 _cBK
999 _c53133
_d53133