Não informado. (1966). Investigaciones educativas en america. Pan American Union, Department of Educational Affairs.
Lua i Stíl Chicago (17ú heag.)Não informado. Investigaciones Educativas En America. Washington: Pan American Union, Department of Educational Affairs, 1966.
Lua MLA (8ú heag.)Não informado. Investigaciones Educativas En America. Pan American Union, Department of Educational Affairs, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.