Hayes, R. J. (1941). The national library in the modern state.
Lua i Stíl Chicago (17ú heag.)Hayes, Richard J. The National Library in the Modern State. 1941.
Lua MLA (9ú heag.)Hayes, Richard J. The National Library in the Modern State. 1941.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
