Lubbock, T., & Martin, P. (2012). On their own initiative: How politicians use direct democracy in the United States.
Lua i Stíl Chicago (17ú heag.)Lubbock, T., agus P. Martin. On Their Own Initiative: How Politicians Use Direct Democracy in the United States. 2012.
Lua MLA (9ú heag.)Lubbock, T., agus P. Martin. On Their Own Initiative: How Politicians Use Direct Democracy in the United States. 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.