Duverger, M., Pressure groups, & Wagover, R. (1972). Party politics and pressure groups: A comparative introduction. Thomas Nelson.
Chicago Style (17th ed.) CitationDuverger, Maurice, Pressure groups, and Robert Wagover. Party Politics and Pressure Groups: A Comparative Introduction. London, Eng: Thomas Nelson, 1972.
MLA (9th ed.) CitationDuverger, Maurice, et al. Party Politics and Pressure Groups: A Comparative Introduction. Thomas Nelson, 1972.
Warning: These citations may not always be 100% accurate.