APA (7th ed.) Citation

Unwin, G. (1963). The gilds and companies of London (4th ed.). F. Cass.

Chicago Style (17th ed.) Citation

Unwin, George. The Gilds and Companies of London. 4th ed. London: F. Cass, 1963.

MLA (8th ed.) Citation

Unwin, George. The Gilds and Companies of London. 4th ed. F. Cass, 1963.