Não informado. (1968). Philosophy and History. Institute for Scientific Co-operation.
Lua i Stíl Chicago (17ú heag.)Não informado. Philosophy and History. Tubingen, Alemanha: Institute for Scientific Co-operation, 1968.
Lua MLA (8ú heag.)Não informado. Philosophy and History. Institute for Scientific Co-operation, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.