Παραπομπή APA

Hartwell, R. M. (1971). The industrial revolution and economic growth. Methuen and Co..

Παραπομπή Chicago Style

Hartwell, R. M. The Industrial Revolution and Economic Growth. London: Methuen and Co., 1971.

Παραπομπή MLA

Hartwell, R. M. The Industrial Revolution and Economic Growth. Methuen and Co., 1971.