Röthel, H. K., & Kandinsky, W. (1968). Kandinsky and his friends: [exhibition "Kandinsky and his friends" at London 1966] / Hans Konrad Röthel. Marlborough Fine Art.
Παραπομπή σε μορφή Chicago (17η εκδ.)Röthel, Hans Konrad, και Wassily Kandinsky. Kandinsky and His Friends: [exhibition "Kandinsky and His Friends" at London 1966] / Hans Konrad Röthel. London: Marlborough Fine Art, 1968.
Παραπομπή σε μορφή MLA (8th εκδ.)Röthel, Hans Konrad, και Wassily Kandinsky. Kandinsky and His Friends: [exhibition "Kandinsky and His Friends" at London 1966] / Hans Konrad Röthel. Marlborough Fine Art, 1968.
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