Helen Frankenthaler, Ellsworth Kelly, Roy Lichtenstein, Jules Olitski : XXXIII esposizione Biennale Internazionale d'Arte Venezia 1966,Stati Uniti d'America, 18 Guigno - 16 Ottobre 1966 = Helen Frankenthaler, Ellsworth Kelly, Roy Lichtenstein, Jules Olitski : XXXIII International Biennial Exhibition of Art Venice 1966, Unites States of America, June 18 - October 16 1966 / commissario Henry Geldzahler. - Washingron, DC : National Collection of Fine Arts. Smithsonian Institution, cop. 1966. - 42 s. : kuv. (mv., vär.) ; 21 x 27 cm
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