Author: E. Leonard Arnoff Support1 Ebooks by E. Leonard Arnoff C. West Churchman & Russel L. Ackoff: Operations Research … PDF German DRM €169.95 0 0 Checkout 0,00 × × × Change user language × ArabicGermanEnglishSpanishFrenchHindiIndonesianItalianMalayDutchPolishPortugueseRomanianRussianSwedishThaiTurkishUkrainianVietnameseChineseInternational Modal ×