Não informado. (2012). The American Journal of Distance Education. Pennsylvania State University, College of Education, Office for Distance Education.
Chicago-Zitierstil (17. Ausg.)Não informado. The American Journal of Distance Education. University Park, Pa: Pennsylvania State University, College of Education, Office for Distance Education, 2012.
MLA-Zitierstil (8. Ausg.)Não informado. The American Journal of Distance Education. Pennsylvania State University, College of Education, Office for Distance Education, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.