Dyfyniad APA

Urwick, L. (1943). The elements of administration. Harper.

Dyfyniad Arddull Chicago

Urwick, Lyndall. The Elements of Administration. New York: Harper, 1943.

Dyfyniad MLA

Urwick, Lyndall. The Elements of Administration. Harper, 1943.

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