Dyfyniad APA

Toynbee, A. J. (1934). A study of history. Royal Institute of International Affairs.

Dyfyniad Arddull Chicago

Toynbee, Arnold J. A Study of History. Royal Institute of International Affairs, 1934.

Dyfyniad MLA

Toynbee, Arnold J. A Study of History. Royal Institute of International Affairs, 1934.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.