000 00454 a2200253 4500
001 21085
020 _a0
041 _aeng
080 _a681.143:518 Joh
245 _aSlide rule
250 _a
260 _aPrinceton
260 _bD. Van Nostrand,
260 _c1949
300 _ax,242 p.
300 _c23 cm
490 _a
100 _aJohnson, Lee H.
700 _a
650 _a
650 _aSlide-rule
942 _cBK
942 _2UDC
999 _c29586
_d29586