Zahm, O. (1990). Conceptual Art, A Perspective. Shifting Back And Forth Between. The Visible And The Invisible. Flash Art.
Chicago-viite (17. p.)Zahm, Olivier. "Conceptual Art, A Perspective. Shifting Back And Forth Between. The Visible And The Invisible." Flash Art 1990.
MLA-viite (8. p.)Zahm, Olivier. "Conceptual Art, A Perspective. Shifting Back And Forth Between. The Visible And The Invisible." Flash Art, 1990.
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