Leege, D. C., & Francis, W. L. (1974). Political research: Design, measurement, and analysis. Basic Books.

Leege, David C., and Wayne L. Francis. Political Research: Design, Measurement, and Analysis. New York: Basic Books, 1974.

Leege, David C., and Wayne L. Francis. Political Research: Design, Measurement, and Analysis. Basic Books, 1974.