Harman, R. V., Tucker, H. R., & Wrench, J. E. (1934). American citizenship practice. The University publishing.
Lua i Stíl Chicago (17ú heag.)Harman, Robert Valentine, Henry R. Tucker, agus Jesse Ervin Wrench. American Citizenship Practice. Lincoln, Chicago [etc.]: The University publishing, 1934.
Lua MLA (9ú heag.)Harman, Robert Valentine, et al. American Citizenship Practice. The University publishing, 1934.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.