Collingwood, R. G. (1956). The idea of history. A Galaxy Book.
Cita Chicago Style (17a ed.)Collingwood, R. G. The Idea of History. New York: A Galaxy Book, 1956.
Cita MLA (8a ed.)Collingwood, R. G. The Idea of History. A Galaxy Book, 1956.
Precaución: Estas citas no son 100% exactas.