Riggs, F. W. (1959). Politics, policy and personnel. Institute of Public Administration, University of the Philippines.
Lua i Stíl Chicago (17ú heag.)Riggs, Fred Warren. Politics, Policy and Personnel. Manila: Institute of Public Administration, University of the Philippines, 1959.
Lua MLA (9ú heag.)Riggs, Fred Warren. Politics, Policy and Personnel. Institute of Public Administration, University of the Philippines, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.