La via del Sahara. Estratto da "L'Universo". Rivista bimestrale dell'Istituto Geografico Militare.

San Domenico di Fiesole, Edizioni Cultura della Pace 1993, cm.15x21, pp.316, alcune ill.in bn.nt., brossura, copertina figurata. Coll.Archivio.

Secaucus (NJ), The Citadel Press 1974, cm.231,5x28, pp.(6),377,(1), centinaia di ill.in bn.nt., brossura, cop.fig. [copia in buono stato]

Cambridge University Press 1998, cm.13,5x21,5, pp.XIV,142, brossura con copertina figurata. This extended essay by one of the world's leading historians seeks, in its first part, to excavate and to vindicate, the neo-Roman theory of free citizens and free states as it developed in early modern Britain. This analysis leads on to a powerful defence of the nature, purposes and goals of intellectual history and the history of ideas. As Quentin Skinner says, 'the intellectual historian can help us to appreciate how far the values embodied in our present way of life, and our present ways of thinking about those values, reflect a series of choices made at different times between different possible worlds'. This essay provides one of the most substantial statements yet made about the importance, relevance and potential excitement of this form of historical enquiry.