Gottwald, S. (1993). Fuzzy sets and fuzzy logic: Foundations of application from a mathematical point of wiew. Lengerich: Vieweg.
استشهاد بنمط شيكاغوGottwald, Siegfried. Fuzzy Sets and Fuzzy Logic: Foundations of Application From a Mathematical Point of Wiew. Lengerich: Vieweg, 1993.
MLA استشهادGottwald, Siegfried. Fuzzy Sets and Fuzzy Logic: Foundations of Application From a Mathematical Point of Wiew. Lengerich: Vieweg, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.