Não informado. (1968). Farm buildings digest. Farm Buildings Information Centre.
Style de citation Chicago (17e éd.)Não informado. Farm Buildings Digest. Kenilworth, Inglaterra: Farm Buildings Information Centre, 1968.
Style de citation MLA (8e éd.)Não informado. Farm Buildings Digest. Farm Buildings Information Centre, 1968.
Attention : ces citations peuvent ne pas être correctes à 100%.