APA-čujuhus (7. p.)
Plumptre, G. Sotheby's Preview: December 1996. Sotheby's.
Chicago-čujuhus (17. p.)
Plumptre, George. Sotheby's Preview: December 1996. Nueva York, EUA: Sotheby's.
MLA-čujuhus (9. p.)
Plumptre, George. Sotheby's Preview: December 1996. Sotheby's.
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