Thomas, H. (1981). An unfinished history of the world. London: H. Hamilton.
Trích dẫn kiểu ChicagoThomas, Hugh. An Unfinished History of the World. London: H. Hamilton, 1981.
MLA引文Thomas, Hugh. An Unfinished History of the World. London: H. Hamilton, 1981.
警告：这些引文格式不一定是100％准确.