Douglas, C. (1980). Swans of other worlds: Kazimir Malevich and the origins of abstraction in Russia / by Charlotte Douglas. UMI Research Press.
Chicago-Zitierstil (17. Ausg.)Douglas, Charlotte. Swans of Other Worlds: Kazimir Malevich and the Origins of Abstraction in Russia / by Charlotte Douglas. Ann Arbor, Michigan: UMI Research Press, 1980.
MLA-Zitierstil (8. Ausg.)Douglas, Charlotte. Swans of Other Worlds: Kazimir Malevich and the Origins of Abstraction in Russia / by Charlotte Douglas. UMI Research Press, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.