Albers, J. (1965). Josef Albers: Homage to the Square; [Gimpel & Hanover Galerie, Zürich, 23. Juni bis 7. August 1965, Gimpel Fils Gallery, London, 1st September to 2nd October 1965].
Chicago-viite (17. p.)Albers, Josef. Josef Albers: Homage to the Square; [Gimpel & Hanover Galerie, Zürich, 23. Juni Bis 7. August 1965, Gimpel Fils Gallery, London, 1st September to 2nd October 1965]. Zürich, 1965.
MLA-viite (8. p.)Albers, Josef. Josef Albers: Homage to the Square; [Gimpel & Hanover Galerie, Zürich, 23. Juni Bis 7. August 1965, Gimpel Fils Gallery, London, 1st September to 2nd October 1965]. 1965.
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