Dyfyniad APA

Stone, R. (1981). Aspects of economic and social modelling. Librairie Droz.

Dyfyniad Arddull Chicago

Stone, Richard. Aspects of Economic and Social Modelling. Geneva: Librairie Droz, 1981.

Dyfyniad MLA

Stone, Richard. Aspects of Economic and Social Modelling. Librairie Droz, 1981.

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