APA (7th ed.) Citation

Clarke, W. M. (1970). The world's money: How it works. Allen & Unwin.

Chicago Style (17th ed.) Citation

Clarke, William M. The World's Money: How It Works. London: Allen & Unwin, 1970.

MLA (9th ed.) Citation

Clarke, William M. The World's Money: How It Works. Allen & Unwin, 1970.