00352nam a2200109Ia 450000500170000000800410001710000210005824501060007926000220018530000110020765000240021820260328104320.0260328s9999||||xx |||||||||||||| ||und|| aMarshall, Perry 0a80/20 :b sales and marketing the definitive Guide to Working less and making more /cPerry Marshall bEntrepeneur Press a230 p. aDISEÑO INDUSTRIAL