Dyfyniad APA

Hutchison, T. (1964). Positive Economics and policy objectives. George Allen and unwin ltd.

Dyfyniad Arddull Chicago

Hutchison, T.W. Positive Economics and Policy Objectives. london: George Allen and unwin ltd, 1964.

Dyfyniad MLA

Hutchison, T.W. Positive Economics and Policy Objectives. George Allen and unwin ltd, 1964.

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