JAN PALMOWSKI. "Social Democratic Party, Italy." A Dictionary of Contemporary World History. 2004. Encyclopedia.com. 15 Nov. 2009 <http://www.encyclopedia.com>.
JAN PALMOWSKI. "Social Democratic Party, Italy." A Dictionary of Contemporary World History. 2004. Encyclopedia.com. (November 15, 2009). http://www.encyclopedia.com/doc/1O46-SocialDemocraticPartyItly.html
JAN PALMOWSKI. "Social Democratic Party, Italy." A Dictionary of Contemporary World History. 2004. Retrieved November 15, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O46-SocialDemocraticPartyItly.html