Nota Liberalisme_sosial

    1. Donald E. Pease, Robyn Wiegman (eds.), The Futures of American Studies, Duke University Press, 2002, p. 518.
    2. Rohr, Donald G. (September 1964). "The Origins of Social Liberalism in Germany". The Journal of Economic History. 24 (03). 
    3. Gaus, Gerald & Courtland, Shane D. (Spring 2011). "The 'New Liberalism'". The Stanford Encyclopedia of Philosophy
    4. John Derbyshire (12 July 2010). "The origins of social liberalism". New Statesman
    5. The history of European liberalism (1959), Guido De Ruggiero, pp. 155–157
    6. Fauks, Keith. Political Sociology: A Critical Introduction. Edinburgh University Press, 1999, page 73
    7. Slomp, Hans (2000). European Politics Into the Twenty-First Century: Integration and Division. Westport: Greenwood Publishing Group. ISBN 0275968146
    8. Hombach, Bodo (2000). The politics of the new centre. Wiley-Blackwell. ISBN 9780745624600
    9. Marks, Gary & Wilson, Carole (July 2000). "The Past in the Present: A Cleavage Theory of Party Response to European Integration" (PDF). British Journal of Political Science. 30: 433–459. doi:10.1017/S0007123400000181
    10. Richardson, James L. (2001). Contending Liberalisms in World Politics: Ideology and Power. Colorado: Lynne Rienner Publishers. 155587939X. 
    11. Chideya, Farai (2004). The Red and the Blue: A Divided America. Trust: Reaching the 100 Million Missing Voters and Other Selected Essays. Soft Skull. m/s. 34.