Fondazione Istituto piemontese Antonio Gramsci di Torino - Polo del '900
Entry for Biographical Dictionary of Dissenting Economists / Marina Colonna. - [24] p., in: Biographical Dictionary of Dissenting Economists / General Editors Philip Arestis, Malcolm C. Sawyer. - Aldershot : Edward Elgar, 1992. - 640 p.