Geologists Association. (1859). Proceedings of the Geologists Association. Academic Press.
Citação do estilo Chicago (17ª ed.)Geologists Association. Proceedings of the Geologists Association. London: Academic Press, 1859.
Citação MLA (8ª ed.)Geologists Association. Proceedings of the Geologists Association. Academic Press, 1859.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.