Mayer, W. G., & Busch, A. (2004). The front-loading problem in presidential nominations. Brookings Institution Press.
Cita Chicago (17th ed.)Mayer, William G., i Andrew Busch. The Front-loading Problem in Presidential Nominations. Washington, D.C: Brookings Institution Press, 2004.
Cita MLA (9th ed.)Mayer, William G., i Andrew Busch. The Front-loading Problem in Presidential Nominations. Brookings Institution Press, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.