Mülhaupt, F., & Merkert, J. (2002). Self-portraits from the 1920s: The Feldberg Collection.
Chicago-Zitierstil (17. Ausg.)Mülhaupt, Freya, und Jörn Merkert. Self-portraits from the 1920s: The Feldberg Collection. Berlin, 2002.
MLA-Zitierstil (8. Ausg.)Mülhaupt, Freya, und Jörn Merkert. Self-portraits from the 1920s: The Feldberg Collection. 2002.
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