Langford, A. M. (1761). A catalogue of the genuine and capital collection of antique gems, of Signor De Medina, Late of Leghorn, Merchant, Deceased; Consisting of 125 Intaglia's and 100 Camaeo's, which he had, with great Care and Expence, been many Years collecting; most of which are richly set in Gold, several engraved by Mons. Marriette of Paris, and Mr. Natter, and likewise particularly taken Notice of in their Books of Gems. Which (by Order of the Executors) Will be sold by Auction, By Mr. Langford, At his House in the Great Piazza, Covent Garden, On Tuesday the 10th of this Instant February 1761, and the Two following Days. s.n.
Chicago Style (17th ed.) CitationLangford, Abraham Mr. A Catalogue of the Genuine and Capital Collection of Antique Gems, of Signor De Medina, Late of Leghorn, Merchant, Deceased; Consisting of 125 Intaglia's and 100 Camaeo's, Which He Had, with Great Care and Expence, Been Many Years Collecting; Most of Which Are Richly Set in Gold, Several Engraved by Mons. Marriette of Paris, and Mr. Natter, and Likewise Particularly Taken Notice of in Their Books of Gems. Which (by Order of the Executors) Will Be Sold by Auction, By Mr. Langford, At His House in the Great Piazza, Covent Garden, On Tuesday the 10th of This Instant February 1761, and the Two Following Days. [London]: s.n, 1761.
MLA (9th ed.) CitationLangford, Abraham Mr. A Catalogue of the Genuine and Capital Collection of Antique Gems, of Signor De Medina, Late of Leghorn, Merchant, Deceased; Consisting of 125 Intaglia's and 100 Camaeo's, Which He Had, with Great Care and Expence, Been Many Years Collecting; Most of Which Are Richly Set in Gold, Several Engraved by Mons. Marriette of Paris, and Mr. Natter, and Likewise Particularly Taken Notice of in Their Books of Gems. Which (by Order of the Executors) Will Be Sold by Auction, By Mr. Langford, At His House in the Great Piazza, Covent Garden, On Tuesday the 10th of This Instant February 1761, and the Two Following Days. s.n, 1761.