Trích dẫn APA

Machlup, F. (1980). Knowledge, its creation, distribution, and economic significance. New Jersey: Princeton University Press.

Trích dẫn kiểu Chicago

Machlup, Fritz. Knowledge, Its Creation, Distribution, and Economic Significance. New Jersey: Princeton University Press, 1980.

Trích dẫn MLA

Machlup, Fritz. Knowledge, Its Creation, Distribution, and Economic Significance. New Jersey: Princeton University Press, 1980.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.