APA引文

(1999). Purchasing power parities and real expenditures (1999 edition.). OECD.

Chicago Style (17th ed.) Citation

Purchasing Power Parities and Real Expenditures. 1999 edition. Paris, Cedex, France: OECD, 1999.

MLA引文

Purchasing Power Parities and Real Expenditures. 1999 edition. OECD, 1999.