000
00307nam a2200121Ia 45e0
008
181001s1971 xx 000 0 und d
100
_a
Ray &
245
0
_a
Text book of dimentials equations
260
_b
Students Friends
_c
1971
300
_a
399
700
_a
Sharma
942
_2
ddc
_c
BK
999
_c
2242
_d
2242