Highland Hereford Breeders Association. The Highland bulletin. Highland Hereford Breeders Association.
Čikaški stil citiranja (17. izdanje)Highland Hereford Breeders Association. The Highland Bulletin. Marfa, Tex.: Highland Hereford Breeders Association.
MLA način citiranja (8. izdanje)Highland Hereford Breeders Association. The Highland Bulletin. Highland Hereford Breeders Association.
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