00410nam a2200121Ia 450000500170000008000180001710000230003524500470005826000420010530000170014752001050016458300190026920260716043145.0 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