Krupp, W., & Arp, H. (2000). Arp: Line and form / essay by Walburga Krupp.
Cita Chicago Style (17a ed.)Krupp, Walburga, y Hans Arp. Arp: Line and Form / Essay by Walburga Krupp. New York NY, 2000.
Cita MLA (8a ed.)Krupp, Walburga, y Hans Arp. Arp: Line and Form / Essay by Walburga Krupp. 2000.
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