Não informado. (1922). Brown swiss bulletin. Brown Swiss Cattle Breeders Association.
Style de citation Chicago (17e éd.)Não informado. Brown Swiss Bulletin. Beloit, Wis: Brown Swiss Cattle Breeders Association, 1922.
Style de citation MLA (8e éd.)Não informado. Brown Swiss Bulletin. Brown Swiss Cattle Breeders Association, 1922.
Attention : ces citations peuvent ne pas être correctes à 100%.