APA-čujuhus (7. p.)
ebrary, Inc, & Berkowitz, P. (2004). Varieties of conservatism in America. Hoover Institution Press.
Chicago-čujuhus (17. p.)
ebrary, Inc, juo Peter Berkowitz. Varieties of Conservatism in America. Stanford, Calif.: Hoover Institution Press, 2004.
MLA-čujuhus (9. p.)
ebrary, Inc, juo Peter Berkowitz. Varieties of Conservatism in America. Hoover Institution Press, 2004.
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