Não informado. (2012). The American Journal of Distance Education. Pennsylvania State University, College of Education, Office for Distance Education.
Cytowanie według stylu Chicago (wyd. 17)Não informado. The American Journal of Distance Education. University Park, Pa: Pennsylvania State University, College of Education, Office for Distance Education, 2012.
Cytowanie według stylu MLA (wyd. 8)Não informado. The American Journal of Distance Education. Pennsylvania State University, College of Education, Office for Distance Education, 2012.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..