Kelly, M. E. (1986). A Survey of Use and Evaluation of Support Services by External Students, 1983. Working Papers in Distance Education, No. 10.
Chicago-Zitierstil (17. Ausg.)Kelly, Mavis E. A Survey of Use and Evaluation of Support Services by External Students, 1983. Working Papers in Distance Education, No. 10. 1986.
MLA-Zitierstil (9. Ausg.)Kelly, Mavis E. A Survey of Use and Evaluation of Support Services by External Students, 1983. Working Papers in Distance Education, No. 10. 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.