Readers digest associatio. (1997). The readers digest 75 years. RDI.
Lua i Stíl Chicago (17ú heag.)Readers digest associatio. The Readers Digest 75 Years. Mumbai: RDI, 1997.
Lua MLA (9ú heag.)Readers digest associatio. The Readers Digest 75 Years. RDI, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.