Mandolfo, S. (1986). Engels e Labriola. C.U.E.C.M.
Chicago Style (17th ed.) CitationMandolfo, Santo. Engels E Labriola. Catania: C.U.E.C.M, 1986.
MLA (9th ed.) CitationMandolfo, Santo. Engels E Labriola. C.U.E.C.M, 1986.
Warning: These citations may not always be 100% accurate.