Ng, Y. (2000). Efficiency, equality and public policy: With a case for higher public spending. Macmillan Press.
Lua i Stíl Chicago (17ú heag.)Ng, Yew-Kwang. Efficiency, Equality and Public Policy: With a Case for Higher Public Spending. Basingstoke, Hants., [Eng.]: Macmillan Press, 2000.
Lua MLA (9ú heag.)Ng, Yew-Kwang. Efficiency, Equality and Public Policy: With a Case for Higher Public Spending. Macmillan Press, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.