Leeds Heraldry Society. Aspects of heraldry. Leeds Heraldry Society.
Chicago-Zitierstil (17. Ausg.)Leeds Heraldry Society. Aspects of Heraldry. Leeds: Leeds Heraldry Society.
MLA-Zitierstil (8. Ausg.)Leeds Heraldry Society. Aspects of Heraldry. Leeds Heraldry Society.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.