International Society for the Study of European Ideas. (1980). History of European Ideas. Pergamon Press.
Citação do estilo Chicago (17ª ed.)International Society for the Study of European Ideas. History of European Ideas. Oxford, Inglaterra: Pergamon Press, 1980.
Citação MLA (8ª ed.)International Society for the Study of European Ideas. History of European Ideas. Pergamon Press, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.