(1960). marius richters 1878/1955: Landschappen ; Museum Boyman-van Beuningen, Rotterdam, 18 december '60 / 22 januari '61. Museum Boymans-van Beuningen.
Citazione stile Chigago Style (17a edizione)Marius Richters 1878/1955: Landschappen ; Museum Boyman-van Beuningen, Rotterdam, 18 December '60 / 22 Januari '61. Rotterdam: Museum Boymans-van Beuningen, 1960.
Citatione MLA (8a ed.)Marius Richters 1878/1955: Landschappen ; Museum Boyman-van Beuningen, Rotterdam, 18 December '60 / 22 Januari '61. Museum Boymans-van Beuningen, 1960.
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