000 00331nam a2200133Ia 4500
008 220201s1961 xx 000 0 eng d
041 _aENG
100 _aFREDRICK, HARRY W
245 0 _aDIFFERENTIAL EQUATIONS
250 _a3RD
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1961
300 _aIX+304
942 _2ddc
999 _c38717
_d38717