Citazione Stile APA (7a Edizione)
(2000). Distance Education in Higher Education. U.S. Department of Education.
Citazione stile Chigago Style (17a edizione)
Distance Education in Higher Education. U.S. Department of Education, 2000.
Citatione MLA (9a ed.)
Distance Education in Higher Education. U.S. Department of Education, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.