APA (7 ম সংস্করণ) উদ্ধৃতি

Forward, N. (1971). The field of nations: An account of some new approaches to international relations. Macmillan.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Forward, Nigel. The Field of Nations: An Account of Some New Approaches to International Relations. Macmillan, 1971.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Forward, Nigel. The Field of Nations: An Account of Some New Approaches to International Relations. Macmillan, 1971.