Weisberg, H. F., Krosnick, J. A., & Bowen, B. D. (1996). An introduction to survey research, polling, and data analysis. Sage.
Cita Chicago (17th ed.)Weisberg, Herbert F., Jon A. Krosnick, i Bruce D. Bowen. An Introduction to Survey Research, Polling, and Data Analysis. London: Sage, 1996.
Cita MLA (9th ed.)Weisberg, Herbert F., et al. An Introduction to Survey Research, Polling, and Data Analysis. Sage, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.