Dyfyniad APA

SEN, A. K. (1970). Collective choice and social welfare. Holden-Day.

Dyfyniad Arddull Chicago

SEN, Amartya K. Collective Choice and Social Welfare. San Francisco: Holden-Day, 1970.

Dyfyniad MLA

SEN, Amartya K. Collective Choice and Social Welfare. Holden-Day, 1970.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.