Dyfyniad APA

(2007). Course Credit Accrual & Dropping Out of High School. U.S. Department of Education.

Dyfyniad Arddull Chicago

Course Credit Accrual & Dropping Out of High School. U.S. Department of Education, 2007.

Dyfyniad MLA

Course Credit Accrual & Dropping Out of High School. U.S. Department of Education, 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.