APA (7th ed.) Citation

Wills, G. (1983). The Guinness book of silver / Geoffrey Wills. Guinness Superlatives.

Chicago Style (17th ed.) Citation

Wills, Geoffrey. The Guinness Book of Silver / Geoffrey Wills. London: Guinness Superlatives, 1983.

MLA (9th ed.) Citation

Wills, Geoffrey. The Guinness Book of Silver / Geoffrey Wills. Guinness Superlatives, 1983.

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