Rybak, S. J. (1983). Foreign languages by radio and television: The development of a support strategy for adult home-learners.
Lua i Stíl Chicago (17ú heag.)Rybak, Stephanie Jane. Foreign Languages by Radio and Television: The Development of a Support Strategy for Adult Home-learners. 1983.
Lua MLA (8ú heag.)Rybak, Stephanie Jane. Foreign Languages by Radio and Television: The Development of a Support Strategy for Adult Home-learners. 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.