000			00322nam a22001337a 4500
082			_a517 _bCHU
100			_aChurchill, Ruel V
245			_aOperational mathematics / _cby Ruel V Churchill
250			_a2nd ed.
260			_aNew York : _bMcGrawhill, _c1958.
300			_a337p. :
650			_aMathematical
942			_cBK
999			_c526703 _d526703