Piacenti Aschengreen, C., & Boardman, J. (2008). Ancient and modern gems and jewels: In the collection of Her Majesty The Queen. Royal Collection.
Chicago Style (17th ed.) CitationPiacenti Aschengreen, Cristina, and John Boardman. Ancient and Modern Gems and Jewels: In the Collection of Her Majesty The Queen. London: Royal Collection, 2008.
MLA (9th ed.) CitationPiacenti Aschengreen, Cristina, and John Boardman. Ancient and Modern Gems and Jewels: In the Collection of Her Majesty The Queen. Royal Collection, 2008.
Warning: These citations may not always be 100% accurate.