Sommer Harrits, G. 2001. Jeff Manza and Clem Brooks, Social Cleavages and Political Change. Voter Alignments and U.S. Part\ Coalitions, Oxford: Oxford University Press, 1999, 342 + xi s. £35.00. Politica. 33, 4 (jan. 2001), 459. DOI:https://doi.org/10.7146/politica.v33i4.68491.