Dyfyniad APA

Highland Hereford Breeders Association. The Highland Hereford bulletin. Highland Hereford Breeders Association.

Dyfyniad Arddull Chicago

Highland Hereford Breeders Association. The Highland Hereford Bulletin. Marfa, Tex.: Highland Hereford Breeders Association.

Dyfyniad MLA

Highland Hereford Breeders Association. The Highland Hereford Bulletin. Highland Hereford Breeders Association.

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