Dyfyniad APA

John W. Hallahan High School. Hallahan High School printed material.

Dyfyniad Arddull Chicago

John W. Hallahan High School. Hallahan High School Printed Material.

Dyfyniad MLA

John W. Hallahan High School. Hallahan High School Printed Material.

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