Trích dẫn APA

Knowles, L. (1932). Economic development in the 19th centuary; France, Germany, Russia and the U.S.A. Kegan Paul.

Trích dẫn kiểu Chicago

Knowles, L.C.A. Economic Development in the 19th Centuary; France, Germany, Russia and the U.S.A. Kegan Paul, 1932.

Trích dẫn MLA

Knowles, L.C.A. Economic Development in the 19th Centuary; France, Germany, Russia and the U.S.A. Kegan Paul, 1932.

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