APA (7th ed.) Citation

Knowles, L. C. A. (1964). Economic development in the nineteenth century. Routledge and Kegan Paul.

Chicago Style (17th ed.) Citation

Knowles, L C A. Economic Development in the Nineteenth Century. London: Routledge and Kegan Paul, 1964.

MLA (9th ed.) Citation

Knowles, L C A. Economic Development in the Nineteenth Century. Routledge and Kegan Paul, 1964.