Não informado. (1953). Review of the Electrical Communication Laboratories. Nippon Telegraph and Telephone Corporation.
Lua i Stíl Chicago (17ú heag.)Não informado. Review of the Electrical Communication Laboratories. Tokyo: Nippon Telegraph and Telephone Corporation, 1953.
Lua MLA (8ú heag.)Não informado. Review of the Electrical Communication Laboratories. Nippon Telegraph and Telephone Corporation, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.