APA aipamena

Ng, Y. (1990). Social welfare and economic policy. Harvester Wheatsheaf.

Chicago Style aipamena

Ng, Yew-Kwang. Social Welfare and Economic Policy. New York: Harvester Wheatsheaf, 1990.

MLA aipamena

Ng, Yew-Kwang. Social Welfare and Economic Policy. Harvester Wheatsheaf, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.