Dyfyniad APA

Vickers, S. . G. (1965). The art of judgment: A study of policy making. University papaerbacks.

Dyfyniad Arddull Chicago

Vickers, Sir Geoffrey. The Art of Judgment: A Study of Policy Making. London: University papaerbacks, 1965.

Dyfyniad MLA

Vickers, Sir Geoffrey. The Art of Judgment: A Study of Policy Making. University papaerbacks, 1965.

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