Dyfyniad APA

Percentage of Students With Disabilities Ages 6-21: 1986-96. US Department of Education.

Dyfyniad Arddull Chicago

Percentage of Students With Disabilities Ages 6-21: 1986-96. US Department of Education.

Dyfyniad MLA

Percentage of Students With Disabilities Ages 6-21: 1986-96. US Department of Education.

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