Jacobson, G. (1959). Political Science G.a Jacobson And M.h Lipman. Barnes & Noble.
Lua i Stíl Chicago (17ú heag.)Jacobson, G.A. Political Science G.a Jacobson And M.h Lipman. Barnes & Noble, 1959.
Lua MLA (8ú heag.)Jacobson, G.A. Political Science G.a Jacobson And M.h Lipman. Barnes & Noble, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.