(1999). All About Direct Loans. U.S. Department of Education.
Citazione stile Chigago Style (17a edizione)All About Direct Loans. U.S. Department of Education, 1999.
Citatione MLA (9a ed.)All About Direct Loans. U.S. Department of Education, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.