MUGNAI, Bruno. I volontari stranieri e le brigate internazionali in Spagna, 1939-39 = Foreign volunteers & international brigades in Spain, 1936-39. [Zanica] Bergamo : Soldiershop, 2010. 72 p.
MUGNAI, Bruno. Voluntarios extranjeros y Brigadas Internacionales de la Guerra Civil (1936-39) = Foreign volunteers & international brigades in Spain, 1936-39. [Zanica] Bergamo : Soldiershop, 2018. 82 p.
https://sidbrint.ub.edu/en/node/19021
