APA

Dev A., Dev I. A., . (2009). History of the world : from the late nineteenth to the early twenty-first century. New Delhi: Orient Blackswan.

Chicago

Dev Arjun, Dev Indira Arjun, . 2009. History of the world : from the late nineteenth to the early twenty-first century. New Delhi: Orient Blackswan.

Harvard

Dev A., Dev I. A., . (2009). History of the world : from the late nineteenth to the early twenty-first century. New Delhi: Orient Blackswan.

MLA

Dev Arjun, Dev Indira Arjun, . History of the world : from the late nineteenth to the early twenty-first century. New Delhi: Orient Blackswan. 2009.