Gerra Zibila Berriatuan eta Lekeitioko fronteanPatxi Juaristi Larrinaga · First published 2014Open the Tome
Ethnoarchaeological Study of the Blacksmithing Technology in Cebu Island, PhilippinesJocelyn B. Gerra · First published 2012Open the Tome
Gabriele d'Annunzio e l'Indice dei Libri Proibiti da Leone XIII a Pio XIFerdinando Gerra · First published 1958Open the Tome
