Dube, W. D., & Whittall, M. (1972). The expressionists. Thames & Hudson.
Cita Chicago (17th ed.)Dube, Wolf Dieter, i Mary Whittall. The Expressionists. London: Thames & Hudson, 1972.
Cita MLA (9th ed.)Dube, Wolf Dieter, i Mary Whittall. The Expressionists. Thames & Hudson, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.