APA (7 ম সংস্করণ) উদ্ধৃতি

Barr, N. A. (2002). The pension puzzle: Prerequisites and policy choices in pension design. International Monetary Fund.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Barr, N. A. The Pension Puzzle: Prerequisites and Policy Choices in Pension Design. Washington, D.C: International Monetary Fund, 2002.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Barr, N. A. The Pension Puzzle: Prerequisites and Policy Choices in Pension Design. International Monetary Fund, 2002.