Sotheby's (Firm). (1989). Pop Art from the collection of the late Karl Stroher. Sotheby's.
Chicago Style (17th ed.) CitationSotheby's (Firm). Pop Art from the Collection of the Late Karl Stroher. New York: Sotheby's, 1989.
MLA (9th ed.) CitationSotheby's (Firm). Pop Art from the Collection of the Late Karl Stroher. Sotheby's, 1989.
Warning: These citations may not always be 100% accurate.