Clark, L. L., Bedi, D. Ν., & Gill, J. M. (1984). A guide to developing braille and talking book services. International Federation of Library Associations and Institutions.
Lua i Stíl Chicago (17ú heag.)Clark, Leslie L., Dina Ν Bedi, agus John M. Gill. A Guide to Developing Braille and Talking Book Services. The Hague, Netherlands: International Federation of Library Associations and Institutions, 1984.
Lua MLA (9ú heag.)Clark, Leslie L., et al. A Guide to Developing Braille and Talking Book Services. International Federation of Library Associations and Institutions, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.