Portugal, R. C. (1961). Politics - pastime or serious business. Philippine Journal of Public Administration.
Cita Chicago (17th ed.)Portugal, Ramon C. "Politics - Pastime or Serious Business." Philippine Journal of Public Administration 1961.
Cita MLA (9th ed.)Portugal, Ramon C. "Politics - Pastime or Serious Business." Philippine Journal of Public Administration, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.