Keefe, W. J., & Ogul, M. S. (1964). The American legislative process: Congress and the States. Prentice-Hall.
Cita Chicago (17th ed.)Keefe, William J., i Morris S. Ogul. The American Legislative Process: Congress and the States. Englewood Cliffs, N.J.: Prentice-Hall, 1964.
Cita MLA (8th ed.)Keefe, William J., i Morris S. Ogul. The American Legislative Process: Congress and the States. Prentice-Hall, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.