Stein, D. H. (1985). Introduction to digital data communications. Delmar.
Lua i Stíl Chicago (17ú heag.)Stein, David H. Introduction to Digital Data Communications. Albany, N.Y: Delmar, 1985.
Lua MLA (9ú heag.)Stein, David H. Introduction to Digital Data Communications. Delmar, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.