TY - BOOK T1 - The essential Drucker : the best of sixty years of Peter Drucker's essential writings on management A1 - Drucker, Peter F. LA - English PP - New York PB - Collins Business Essentials YR - 2008 UL - https://colectivo.uloyola.es/Record/L195035 OP - 357 SN - 9780061345012 KW - Gestión de empresas KW - Negocios ER -