000
00329nam a2200145Ia 4500
020
_a
9789813052338
082
_b
687
_a
510
100
_a
"Nill"
245
0
_a
Elementary Mathematics
260
_b
Hillview Publications
_c
1980
300
_a
304
944
_c
BK
999
_c
622101
_d
622101