. (1997). The gradual development and codification of international law by the United Nations. Legal Research Quarterly, 1(18), 269-286.

. "The gradual development and codification of international law by the United Nations", Legal Research Quarterly, 1, 18, 1997, 269-286.

. (1997). 'The gradual development and codification of international law by the United Nations', Legal Research Quarterly, 1(18), pp. 269-286.

, "The gradual development and codification of international law by the United Nations," Legal Research Quarterly, 1 18 (1997): 269-286,

. The gradual development and codification of international law by the United Nations. Leg Res Q. 1997;1(18):269-286 (In Persian).