Vasarely.
Vasarely, Victor,1906-1997.
Spies, Werner,1937-
Leppien, Helmut R.(Helmut Rudolf)
Kunsthalle Köln.
[Köln : Die Kunsthalle,
1971]
Catalogue of an exhibition presented at the Kunsthalle Köln, 11 July-19 Sept. 1971.
Texts by Helmut R. Leppien and Werner Spies.
Includes bibliographical references.
Vasarely, Victor, 1906-1997
Optical art