000 00304nam a2200121Ia 4500
041 _aEN
082 _a510
_bDEL
100 _aDelmar Publication, .
245 0 _aPractical Problems in Mathematics / Delmar Publication.
260 _bAlbany : Delmar Publication ,
_c1955
300 _a141
942 _cBK
999 _c13631
_d13631