00381nam a2200109Ia 4500080001800000100002300018245004700041260004200088300001700130520010500147583001900252 a01.02.01 N627 aNicholson, Michael aFormal theories in international relations bCambridge Univ. P.aCambridgeGBc1990 axiii, 254 p. aProvides and account of the present state of formal and mathematical international relations theory. c3/7/00kM2LMGR