Riggs, F. W. (1960). Political interference: Theory and practice. Philippine Journal of Public Administration.
Cita Chicago Style (17a ed.)Riggs, Fred W. "Political Interference: Theory and Practice." Philippine Journal of Public Administration 1960.
Cita MLA (9a ed.)Riggs, Fred W. "Political Interference: Theory and Practice." Philippine Journal of Public Administration, 1960.
Precaución: Estas citas no son 100% exactas.