Mathematics Performance of 4th-, 8th-, & 12th- Grade Students. US Department of Education.
Citazione stile Chigago Style (17a edizione)Mathematics Performance of 4th-, 8th-, & 12th- Grade Students. US Department of Education.
Citatione MLA (9a ed.)Mathematics Performance of 4th-, 8th-, & 12th- Grade Students. US Department of Education.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.