APA (7th ed.) Citation

Williams, I. A. (1931). The firm of Cadbury / by I.A. Williams. Constable.

Chicago Style (17th ed.) Citation

Williams, I. A. The Firm of Cadbury / by I.A. Williams. Constable, 1931.

MLA (9th ed.) Citation

Williams, I. A. The Firm of Cadbury / by I.A. Williams. Constable, 1931.

Warning: These citations may not always be 100% accurate.