000
00336nam a2200121Ia 45e0
008
181001s1969 xx 000 0 und d
100
_a
Khanna M.L
245
0
_a
Differential equations
250
_a
6th
260
_a
Meerut
_b
Kadar Nath Meerut
_c
1969
300
_a
460
942
_2
ddc
_c
BK
999
_c
357
_d
357