000
00253nam a2200121Ia 4500
008
220201s1964 xx 000 0 eng d
082
_a
510.7823
100
_a
Snodgrass,Burni
245
0
_a
Slide rule
260
_c
1964
300
_a
207
942
_2
ddc
999
_c
72881
_d
72881