Pan American Union. (1933). Bibliographies on Pan American Topics: Suggested for high schools. Pan American Union.
Lua i Stíl Chicago (17ú heag.)Pan American Union. Bibliographies on Pan American Topics: Suggested for High Schools. Washington: Pan American Union, 1933.
Lua MLA (9ú heag.)Pan American Union. Bibliographies on Pan American Topics: Suggested for High Schools. Pan American Union, 1933.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.