APA (7th ed.) Citation

McDonough, F. (1997). The origins of the First and Second world wars. Cambridge Univ..

Chicago Style (17th ed.) Citation

McDonough, Frank. The Origins of the First and Second World Wars. Cambridge: Cambridge Univ., 1997.

MLA (9th ed.) Citation

McDonough, Frank. The Origins of the First and Second World Wars. Cambridge Univ., 1997.