Saggio sul Leopardi.

Firenze, Vallecchi Editore 1973, cm.14x23, pp.184, legatura ed.in tutta tela, sopraccop.fig. Coll.Saggi.

Firenze, Le Monnier 1953, cm.14,5x20,5, pp.349, brossura. Quaderni di Letteratura e d'Arte. Edizone in 1550 esemplari numerati e firmati dall'Autore. N.774. Seconda edizione.

Firenze, Le Monnier Ed. 1943, cm.12,5x19, pp.418, brossura Coll.Biblioteca di letteratura e d'Arte.

1a edizione. Firenze, Casa Ed.Le Monnier 1944, cm.14,5x20,5, pp.177, brossura Coll.Quaderni di Letteratura e d'Arte,12. Ediz.in 1000 esemplari numerati, copia con dedica ad Enrico Vallecchi.

Bari, Laterza 1948, cm.14x20, pp.VIII,166, brossura Biblioteca di Cultura Moderna. [buon esemplare]

Traduzione dall'inglese di Elsa Pelitti. Milano, Bompiani 1964, cm.12x20,5, pp.433, brossura, con sopraccoperta figurata a colori. Coll.I più Famosi Libri Moderni,157.

Oxford-New York Basil Blackwell 1987, cm.16x23,5, pp.XIII,(1),272, hardcover, dustjacket. Series Peoples of Europe. This edition of Collin's history of the Basques includes a substantial new chapter on the recent history of the Basques. He places their struggle for indentity and self-determination within the context of the past 2000 years, and aims to show that to a large extent this has finally been achieved within the democratic Spain which has proceeded the death of Franco. Among all former pre-Indo-European peoples, the Basques alone have been able to resist cultural assimilation by their larger and more powerful neighbours and to retain a distinct language. Yet, the Basques have failed to develop any sense of political unity. Drawing upon a wide range of archaeological and historical evidence, this study, examines the origins of these people. The author focuses on the crucial period extending from the Roman Conquest of the Iberian peninisula to the late 12th century.