00390nam a22001457a 4500003000500000005001700005008004100022020001800063040000600081082002000087100002200107245007500129260003100204300000900235CEME20210628203933.0210311b        xxu||||| |||| 00| 0 eng d  a0-07-112595-7  c.  a650.01513 DOW'T  aDewling, Edward T  aThoery and problems of mathematical methods for business and economics  aNEWYORKbMCGRAW HILLc1993  a384P