000			00339cam a2200133ua 4500
003			OSt
008			210121b ||||| |||| 00| 0 eng d
020			_a0 07 099572 9
245			_aDifferential equations /
250			_a1 /
260			_aNew Delhi : _bTata Mc-Graw Hill Publishing Company , _c1972.
300			_a465 ; .
942			_cBK
999			_c256985 _d256985