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| Bibliography: |   
M. Calabrese, A. Del Massa and U. Mannoni, monography, year 1968, ed. Il Poliedro Del Massa, Moretti, Mannoni, catalogue of the exhibition to Gallery "La Bussola" of Bari, February 1969.  | Exhibition: |   
Gallery "La Bussola" of Bari, February 1969.  |