Não informado. (1977). The Pig Veterinary Society Proceedings. Pig Veterinary Society.
Style de citation Chicago (17e éd.)Não informado. The Pig Veterinary Society Proceedings. Wilts, Inglaterra: Pig Veterinary Society, 1977.
Style de citation MLA (8e éd.)Não informado. The Pig Veterinary Society Proceedings. Pig Veterinary Society, 1977.
Attention : ces citations peuvent ne pas être correctes à 100%.