Tohutoro APA (7th ed.)
Sotheby's. (1999). Sotheby's: London, Tuesday 22 June 1999 : Important Clocks, Watches, Wristwatches and Barometers. Sotheby's.
Tohutoru Kātū Chicago (17th ed.)
Sotheby's. Sotheby's: London, Tuesday 22 June 1999 : Important Clocks, Watches, Wristwatches and Barometers. Londres, Inglaterra: Sotheby's, 1999.
Tohutoro MLA (9th ed.)
Sotheby's. Sotheby's: London, Tuesday 22 June 1999 : Important Clocks, Watches, Wristwatches and Barometers. Sotheby's, 1999.
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