Leach, R. H. (1974). Intergovernmental relations in America today, special editor of this volume. American Academy of Political and Social Science.
Lua i Stíl Chicago (17ú heag.)Leach, Richard H. Intergovernmental Relations in America Today, Special Editor of This Volume. Philadelphia: American Academy of Political and Social Science, 1974.
Lua MLA (9ú heag.)Leach, Richard H. Intergovernmental Relations in America Today, Special Editor of This Volume. American Academy of Political and Social Science, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.