APA (7th ed.) Citation

Hughes, G. A pictorial history of gems and jewellery. Phaidon.

Chicago Style (17th ed.) Citation

Hughes, Graham. A Pictorial History of Gems and Jewellery. Oxford: Phaidon.

MLA (9th ed.) Citation

Hughes, Graham. A Pictorial History of Gems and Jewellery. Phaidon.

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