APA-Zitierstil (7. Ausg.)

Sotheby's SA (Genf). (1984). A collection of portrait miniatures from the estate of King Umberto II of Italy: Day of sale Monday, 12th November 1984, Hôtel des Bergues, Geneva, Sotheby's S.A., Geneva. Sotheby's S.A.

Chicago-Zitierstil (17. Ausg.)

Sotheby's SA (Genf). A Collection of Portrait Miniatures from the Estate of King Umberto II of Italy: Day of Sale Monday, 12th November 1984, Hôtel Des Bergues, Geneva, Sotheby's S.A., Geneva. Genf: Sotheby's S.A, 1984.

MLA-Zitierstil (9. Ausg.)

Sotheby's SA (Genf). A Collection of Portrait Miniatures from the Estate of King Umberto II of Italy: Day of Sale Monday, 12th November 1984, Hôtel Des Bergues, Geneva, Sotheby's S.A., Geneva. Sotheby's S.A, 1984.