Peters, O., & Keegan, D. (1994). Otto Peters on distance education: The industrialization of teaching and learning. Routledge.
Lua i Stíl Chicago (17ú heag.)Peters, Otto, agus Desmond Keegan. Otto Peters on Distance Education: The Industrialization of Teaching and Learning. London: Routledge, 1994.
Lua MLA (9ú heag.)Peters, Otto, agus Desmond Keegan. Otto Peters on Distance Education: The Industrialization of Teaching and Learning. Routledge, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.