Pennock, J. R. (1950). Liberal democracy: Its merits and prospects. Rinehart.
Lua i Stíl Chicago (17ú heag.)Pennock, J. Ronald. Liberal Democracy: Its Merits and Prospects. Nueva York: Rinehart, 1950.
Lua MLA (9ú heag.)Pennock, J. Ronald. Liberal Democracy: Its Merits and Prospects. Rinehart, 1950.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.