Barraclough, G. (1955). History in a changing world. University of Oklahoma Press.
Chicago-Zitierstil (17. Ausg.)Barraclough, Geoffrey. History in a Changing World. Norman: University of Oklahoma Press, 1955.
MLA-Zitierstil (8. Ausg.)Barraclough, Geoffrey. History in a Changing World. University of Oklahoma Press, 1955.
警告：这些引文格式不一定是100％准确.