Παραπομπή APA

Gerschenkron, A. (1962). Economic backwardness in historical perspective.

Παραπομπή Chicago Style

Gerschenkron, Alexander. Economic Backwardness in Historical Perspective. Belknap Press, Cambridge, 1962.

Παραπομπή MLA

Gerschenkron, Alexander. Economic Backwardness in Historical Perspective. 1962.