Tohutoro APA (7th ed.)
Sotheby's. Sotheby's: New York, June 23 and 24, 1997 : Important Watches, Wristwatches and Clocks. Sotheby's.
Tohutoru Kātū Chicago (17th ed.)
Sotheby's. Sotheby's: New York, June 23 and 24, 1997 : Important Watches, Wristwatches and Clocks. Nueva York, EUA: Sotheby's.
Tohutoro MLA (9th ed.)
Sotheby's. Sotheby's: New York, June 23 and 24, 1997 : Important Watches, Wristwatches and Clocks. Sotheby's.
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