Citazione APA

Sharma, S. K., & Urmila Sharma. (1997). International relations: Theory and history.

Stile di citazione Chicago

Sharma, S K., e Urmila Sharma. International Relations: Theory and History. New Delhi, Atlantic publishers and distributors, 1997.

Citazione MLA

Sharma, S K., e Urmila Sharma. International Relations: Theory and History. 1997.