Παραπομπή APA

Ng,Yew-Kwag. (1979). Welfare economics: Introduction and development of basic concepts. Mac Millan.

Παραπομπή Chicago Style

Ng,Yew-Kwag. Welfare Economics: Introduction and Development of Basic Concepts. London: Mac Millan, 1979.

Παραπομπή MLA

Ng,Yew-Kwag. Welfare Economics: Introduction and Development of Basic Concepts. Mac Millan, 1979.