ACKOFF RUSSELL L. (1962). SCIENTIFIC METHOD OPTIMIZING APPLIED RESEARCH DECISIONS (5TH.). JOHN WILEY AND SONS.
Chicago Style (17. basım) AtıfACKOFF RUSSELL L. SCIENTIFIC METHOD OPTIMIZING APPLIED RESEARCH DECISIONS. 5TH. NEW YORK: JOHN WILEY AND SONS, 1962.
MLA (9th ed.) AtıfACKOFF RUSSELL L. SCIENTIFIC METHOD OPTIMIZING APPLIED RESEARCH DECISIONS. 5TH. JOHN WILEY AND SONS, 1962.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..