Cita APA

Lewis, J. R., & Williams, A. M. (1984). Social cleavages and electoral performance: The social basis of Portuguese political parties ; 1976 - 83. West European politics.

Citación estilo Chicago

Lewis, J. Roy, y A. M. Williams. "Social Cleavages and Electoral Performance: The Social Basis of Portuguese Political Parties ; 1976 - 83." West European Politics 1984.

Cita MLA

Lewis, J. Roy, y A. M. Williams. "Social Cleavages and Electoral Performance: The Social Basis of Portuguese Political Parties ; 1976 - 83." West European Politics, 1984.