Engels, Manchester e la classe lavoratrice - Marcus, Steven. (OLS)http://semarc/name/57100; Fontana, Luca. (OLS)http://semarc/name/50205 (Piccola Biblioteca Einaudi,, 1980)
Keywords: Engels, Friedrich <1820-1895>. (OLS)http://semarc/subject/27987; Classe operaia - Inghilterra - Manchester. (OLS)http://semarc/subject/27986