Cita APA (7th ed.)

NG, Y. -. K. Welfare Economics : introduction and development of basic concepts: Yew - Kwang NG.

Cita Chicago (17th ed.)

NG, Yew - Kwang. Welfare Economics : Introduction and Development of Basic Concepts: Yew - Kwang NG. London : Macmillan.

Cita MLA (9th ed.)

NG, Yew - Kwang. Welfare Economics : Introduction and Development of Basic Concepts: Yew - Kwang NG.