Não informado. (1973). Data processing digest. Data Processing Digest.
Lua i Stíl Chicago (17ú heag.)Não informado. Data Processing Digest. Los Angeles, Calif: Data Processing Digest, 1973.
Lua MLA (8ú heag.)Não informado. Data Processing Digest. Data Processing Digest, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.