Pfiffner, J. M. (1940). Municipal administration. The Ronald Press Company.
Lua i Stíl Chicago (17ú heag.)Pfiffner, John M. Municipal Administration. New York: The Ronald Press Company, 1940.
Lua MLA (9ú heag.)Pfiffner, John M. Municipal Administration. The Ronald Press Company, 1940.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.