000
002300000a22001090004500
080
_a
518.5
_b
J6
100
_a
Johnson, L.H.
245
_a
The slide rule
260
_a
New York
_b
Van Nostrand
_c
1949
300
_a
242p.
942
_c
BK
999
_c
51599
_d
51599