Baker, R. K. (1980). Friend and foe in the U S Senate. The Free Press.
Cita Chicago (17th ed.)Baker, Ross K. Friend and Foe in the U S Senate. The Free Press, 1980.
Cita MLA (9th ed.)Baker, Ross K. Friend and Foe in the U S Senate. The Free Press, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.