APA সাইটেশন

(1974). world factbook 1974: A handbook of economics, political and geographic intelligence. Massachusetts Publishing Science Group, Inc.

শিকাগো স্টাইলে সাইটেশন

World Factbook 1974: A Handbook of Economics, Political and Geographic Intelligence. Acton: Massachusetts Publishing Science Group, Inc, 1974.

এমএলএ সাইটেশন

World Factbook 1974: A Handbook of Economics, Political and Geographic Intelligence. Massachusetts Publishing Science Group, Inc, 1974.