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999 _c13040
_d13040
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020 _a534005349
082 _a657.45
_bPOR
_223
100 _aPORTER, W.Thomas
100 _aPerry, William E.
245 _aEDP: controls and auditing /
_c[by] W.Thomas Porter, William E.Perry
250 _a2nd ed.
260 _aBelmont
_bWadsworth pub.
_c1977
300 _a266 p.
500 _aIncludes appendix, glossary & index.
650 _aAuditing
942 _cS