Laborem exercens - Ioannes Paulus II, <papa ; santo, 1920-2005>. (OLS)http://semarc/name/646; Spiazzi, Romolo. (OLS)http://semarc/name/58322 (Fabbri,, 1992)
Keywords: Giovanni Paolo II <santo; papa; 1920-2005> - Encicliche . Laborem exercens. (OLS)http://semarc/subject/17596