Sotheby's (Firm). (1972). Catalogue of important old master engravings, etchings and woodcuts, December 1972. Sotheby.
Chicago Style (17th ed.) CitationSotheby's (Firm). Catalogue of Important Old Master Engravings, Etchings and Woodcuts, December 1972. London: Sotheby, 1972.
MLA (9th ed.) CitationSotheby's (Firm). Catalogue of Important Old Master Engravings, Etchings and Woodcuts, December 1972. Sotheby, 1972.
Warning: These citations may not always be 100% accurate.