Trích dẫn APA

Kahn, H. C. (1964). Business and professional income under the personal income tax. National bureau Economic research.

Trích dẫn kiểu Chicago

Kahn, Harry C. Business and Professional Income Under the Personal Income Tax. New York: National bureau Economic research, 1964.

Trích dẫn MLA

Kahn, Harry C. Business and Professional Income Under the Personal Income Tax. National bureau Economic research, 1964.

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