Siffin, W. J. (1960). Thesis topics and outlines in public administration. Institute of Public Administration, Thammasat University.
Cita Chicago (17th ed.)Siffin, William J. Thesis Topics and Outlines in Public Administration. Bangkok: Institute of Public Administration, Thammasat University, 1960.
Cita MLA (9th ed.)Siffin, William J. Thesis Topics and Outlines in Public Administration. Institute of Public Administration, Thammasat University, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.