000
00343nam a2200145Ia 4500
020
_a
0719544521
082
_b
T-1625
_a
510
100
_a
"warren.T"
245
0
_a
step in understanding mathematics
260
_b
,John Murray
_a
london
_c
1989
300
_a
272
944
_c
TB
999
_c
673391
_d
673391