(Note: Clarify my position - liberalism or "classical liberalism"?)
In Print/PDF:Bird, Colin (1999). The Myth of Liberal Individualism. Cambridge: Cambridge University Press.
Eberle, Christopher J. (2002). Religious Conviction in Liberal Politics. Cambridge: Cambridge University Press.
Gutmann, Amy (1985). ‘Communitarian Critics of Liberalism’, 14 Philosophy & Public Affairs: 308-22.
Hobbes, Thomas (1948 [1651]). Leviathan, Michael Oakeshott, ed. Oxford: Blackwell.
Koerner, Kirk. Liberalism and its critics. Oxford: Taylor & Francis, 1985.
Kymlicka, Will (1989). Liberalism, Community and Culture. Oxford: Clarendon Press.
Rawls, John (1996). Political Liberalism. New York: Columbia University Press.
Rawls, John (1999). A Theory of Justice, revised edition. Cambridge, MA: Harvard University Press.
Rawls, John (2001). Justice as Fairness: A Restatement, Erin Kelly, ed. New York: Columbia University Press.
Raz, Joseph (1986). The Morality of Freedom. Oxford: Clarendon Press.
Rousseau, Jean-Jacques (1973 [1762]). The Social Contract and Discourses, G.D.H. Cole, trans. New York: Dutton.
Sandel, Michael. (1982) Liberalism and the Limits of Justice. Cambridge: Cambridge University Press.
Scanlon, T.M. (1998) What We Owe Each Other. Cambridge, MA: Harvard University Press.
Taylor, Charles (1992). Multiculturalism and The Politics of Recognition. Princeton: Princeton University Press.
Eric Voegelin, Mary Algozin, and Keith Algozin, "Liberalism and Its History", Review of Politics 36, no. 4 (1974): 504-20
Online:Library of LibertyStandford Encyclopedia of PhilosophyWiki: LiberalismWiki: Classical LiberalismPositive and Negative LibertyOn KantOn HobbesOn Locke