CHURCHMAN, C. WEST. EL ENFOQUE DE SISTEMAS/ C. WUST CHURCHMAN. - MEXICO: DIANA 1973 - 270 P. 21 CM. ISBN: 968-13-0814-X Subjects--Topical Terms: 1.ANALISIS DE SISTEMAS.2.TOMA DE DECISIONES. Dewey Class. No.: 658.403 CH77