APA-čujuhus (7. p.)
Sotheby's. Sotheby's: New York, Monday October 27, 1997 : Important Watches, Wristwatches and Clocks. Sotheby's.
Chicago-čujuhus (17. p.)
Sotheby's. Sotheby's: New York, Monday October 27, 1997 : Important Watches, Wristwatches and Clocks. Nueva York, EUA: Sotheby's.
MLA-čujuhus (9. p.)
Sotheby's. Sotheby's: New York, Monday October 27, 1997 : Important Watches, Wristwatches and Clocks. Sotheby's.
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