APA (7th ed.) Citation

Williams, I. A. (1931). The firm of Cadbury, 1831-1931. Constable.

Chicago Style (17th ed.) Citation

Williams, Iolo Aneurin. The Firm of Cadbury, 1831-1931. London: Constable, 1931.

MLA (8th ed.) Citation

Williams, Iolo Aneurin. The Firm of Cadbury, 1831-1931. Constable, 1931.

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