Rollmann-Borretty, B. (2004). Art in the Hinge: The collection of the European Patent Office in The Hague.
Chicago-viite (17. p.)Rollmann-Borretty, Barbara. Art in the Hinge: The Collection of the European Patent Office in The Hague. Munich, 2004.
MLA-viite (8. p.)Rollmann-Borretty, Barbara. Art in the Hinge: The Collection of the European Patent Office in The Hague. 2004.
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