Não informado. (2004). Journal of the Society for the Bibliography of Natural History. Society for the Bibliography of Natural History.
Citação do estilo Chicago (17ª ed.)Não informado. Journal of the Society for the Bibliography of Natural History. London: Society for the Bibliography of Natural History, 2004.
Citação MLA (8ª ed.)Não informado. Journal of the Society for the Bibliography of Natural History. Society for the Bibliography of Natural History, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.