References
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- Hastings , P. K. 1953 . Politics laboratory—1952 . J. Higher Educ. , 24 : 12 – 17 .
- Hastings , P. K. 1953 . The independent voter in 1952: A study of Pittsfield, Massachusetts . Am. Pol. Sc. Rev. , 47 : 805 – 810 .
- Key , V. O. Jr. 1952 . Politics, Parties, and Pressure Groups , New York : Crowell .
- Survey Research Center, University of Michigan . 1949 . A Study of the Presidential Vote: November 1948 Ann Arbor
- Woodward , J. L. and Roper , E. 1950 . Political activity of American citizens . Am. Pol. Sc. Rev. , 44 : 872 – 885 .