000
00321nam a2200145 4500
082
_a
510 SIN-O
100
_a
Singal, M K; Singal, A R
245
_a
Olympiad mathematics
250
_a
260
_a
New Delhi
_b
Pitambar Publishing Company
_c
2001
300
_a
490
_a
650
_a
Mathematics
942
_c
BK
999
_c
599207
_d
599207