Bissolati.

Orbit 1994, cm.11x18, pp.442, brossura copertina figurata a colori. A sequel to "Crisis on Doona". 25 years after the original human settlers arrived, only to find Doona already inhabited by the cat-like Hrrubans, the treaty which established their cohabitation is due for renewal. But a crisis has marred the celebrations, sparked by political and personal greed.

Le cinquième livre. Le Moyen de parvenir. Les joyeux devis. Paris, E.de Boccard,Editeur 1927, cm.16x25, pp.302, brossura, copp. in fase di distacco, piccola lacuna al dorso inf. Buoni interni.

Paris, Les Editions Rieder 1936, cm.12x18,5, pp.176, brossura, piccolo guasto al dorso inf. ma buon esempl. A p.1 invio autogr. dell'A. a Gina e Guglielmo Ferrero. Collection Europe

Milano, Feltrinelli Editore 1976, 2 voll. completo. cm.11,3x18, pp.656,(4), (numeraz.consecutiva), brossura [copia in ottimo stato.] Coll.Enciclopedia Feltrinelli Fischer,36 e 37.