Cita APA (7a ed.)

Christie's Amsterdam B.V. (1990). 19th century European pictures, watercolours and drawings: Wednesday 2 may 1990. Christie's Amsterdam B.V.

Cita Chicago Style (17a ed.)

Christie's Amsterdam B.V. 19th Century European Pictures, Watercolours and Drawings: Wednesday 2 May 1990. Amsterdam: Christie's Amsterdam B.V, 1990.

Cita MLA (9a ed.)

Christie's Amsterdam B.V. 19th Century European Pictures, Watercolours and Drawings: Wednesday 2 May 1990. Christie's Amsterdam B.V, 1990.