Dyfyniad APA

J.K. Rowling (Great Neck Publishing). Great Neck Publishing.

Dyfyniad Arddull Chicago

J.K. Rowling (Great Neck Publishing). Great Neck Publishing.

Dyfyniad MLA

J.K. Rowling (Great Neck Publishing). Great Neck Publishing.

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