Não informado. (2009). Proceedings and Reports of the Belfast Natural History and Philosophical Society. Belfast Natural History and Philosophical Society.
Citação do estilo Chicago (17ª ed.)Não informado. Proceedings and Reports of the Belfast Natural History and Philosophical Society. Belfast, Irlanda: Belfast Natural History and Philosophical Society, 2009.
Citação MLA (8ª ed.)Não informado. Proceedings and Reports of the Belfast Natural History and Philosophical Society. Belfast Natural History and Philosophical Society, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.