Calvera
Calvera (Lucano: Càlavìrë) is a city and comune in the province of Potenza, southern Italy.
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- ^ "Superficie di Comuni Province e Regioni italiane al 9 ottobre 2011". Italian National Institute of Statistics. Retrieved 16 March 2019.
- ^ "Popolazione Residente al 1° Gennaio 2018". Italian National Institute of Statistics. Retrieved 16 March 2019.