000
00254nam a2200109Ia 4500
008
220201s1972 xx 000 0 eng d
100
_a
CHAPMAN W A J
245
0
_a
ELEMENTARY WORKSHOP CALCULATIONS
260
_b
ELBS
_c
1972
300
_a
259
942
_2
ddc
999
_c
30565
_d
30565