Machlup, F. (1980). Knowledge, its creation, distribution, and economic significance. New Jersey: Princeton University Press.
استشهاد بنمط شيكاغوMachlup, Fritz. Knowledge, Its Creation, Distribution, and Economic Significance. New Jersey: Princeton University Press, 1980.
MLA استشهادMachlup, Fritz. Knowledge, Its Creation, Distribution, and Economic Significance. New Jersey: Princeton University Press, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.