Poole, K. T., & Rosenthal, H. (1997). Congress: A political-economic history of roll call voting. Oxford University Press.
Cita Chicago (17th ed.)Poole, Keith T., i Howard Rosenthal. Congress: A Political-economic History of Roll Call Voting. New York: Oxford University Press, 1997.
Cita MLA (9th ed.)Poole, Keith T., i Howard Rosenthal. Congress: A Political-economic History of Roll Call Voting. Oxford University Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.