APA (7 ম সংস্করণ) উদ্ধৃতি

National geographic society, Washington, D. C. (1923). The capital of our country. National geographic society.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

National geographic society, Washington, D. C. The Capital of Our Country. Washington, D.C: National geographic society, 1923.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

National geographic society, Washington, D. C. The Capital of Our Country. National geographic society, 1923.