000 00274nam a2200109 4500
999 _c134714
_d134714
082 _a823 KOC-E
100 _aKoch Richard
245 _aThe 80/20 Principle: The secret to Achieving more with less
260 _aN.Y.
_bCurrency
_c2017
300 _a319
942 _2ddc
_cBK
_012