Nielsen, J. U. (1995). International economics: The wealth of open nations. .McGraw-Hill Book Co.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNielsen, Jorgen Ulff-Moller. International Economics: The Wealth of Open Nations. London ; New York: .McGraw-Hill Book Co, 1995.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিNielsen, Jorgen Ulff-Moller. International Economics: The Wealth of Open Nations. .McGraw-Hill Book Co, 1995.