Dyfyniad APA

Edited by Hurrell , . A. (2000). Hedley bull on international society. Macmillan.

Dyfyniad Arddull Chicago

Edited by Hurrell , Andrew. Hedley Bull on International Society. London: Macmillan, 2000.

Dyfyniad MLA

Edited by Hurrell , Andrew. Hedley Bull on International Society. Macmillan, 2000.

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