Citazione Stile APA (7a Edizione)

Isenman, P. (1979). Inter-country comparison of "real" (PPP) incomes: Revised estimates and unresolved questions. World Bank.

Citazione stile Chigago Style (17a edizione)

Isenman, Paul. Inter-country Comparison of "Real" (PPP) Incomes: Revised Estimates and Unresolved Questions. Washington: World Bank, 1979.

Citatione MLA (9a ed.)

Isenman, Paul. Inter-country Comparison of "Real" (PPP) Incomes: Revised Estimates and Unresolved Questions. World Bank, 1979.