Rugoff, R. (2000). Touched by your presence: Ralph Rugoff on invisibility in art. frieze.
Chicago-viite (17. p.)Rugoff, Ralph. "Touched by Your Presence: Ralph Rugoff on Invisibility in Art." Frieze 2000.
MLA-viite (8. p.)Rugoff, Ralph. "Touched by Your Presence: Ralph Rugoff on Invisibility in Art." Frieze, 2000.
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