APA (7th ed.) Citation

(1990). Important watches and wristwatches: Auction Thursday, January 25, 1990, Sotheby's New York 5976 "SPIGOLA" ; [Nummern 1 - 539]. Sotheby's.

Chicago Style (17th ed.) Citation

Important Watches and Wristwatches: Auction Thursday, January 25, 1990, Sotheby's New York 5976 "SPIGOLA" ; [Nummern 1 - 539]. New York, NY: Sotheby's, 1990.

MLA (9th ed.) Citation

Important Watches and Wristwatches: Auction Thursday, January 25, 1990, Sotheby's New York 5976 "SPIGOLA" ; [Nummern 1 - 539]. Sotheby's, 1990.