Collingwood, R. G. (1961). The idea of history. Oxford University Press.
Dyfyniad Arddull ChicagoCollingwood, Robin George. The Idea of History. Londres: Oxford University Press, 1961.
Dyfyniad MLACollingwood, Robin George. The Idea of History. Oxford University Press, 1961.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.