APA
Overy R. J., . (2007). Complete History of the World. : HarperCollins UK.
Chicago
Overy R J, . 2007. Complete History of the World. : HarperCollins UK.
Harvard
Overy R. J., . (2007). Complete History of the World. : HarperCollins UK.
MLA
Overy R J, . Complete History of the World. : HarperCollins UK. 2007.