Per la Firenze di Dante.

Con prefazione di Benito Mussolini. Firenze, Sansoni 1927, cm.13x19,5, pp.260, brossura con sopraccoperta figurata.

Orbit 1994, cm.11x18, pp.442, brossura con 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.