Dyfyniad APA

(2000). Student Victimization at School. U.S. Department of Education.

Dyfyniad Arddull Chicago

Student Victimization at School. U.S. Department of Education, 2000.

Dyfyniad MLA

Student Victimization at School. U.S. Department of Education, 2000.

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