00312nam a2200121Ia 45000030006000000080041000060400015000471000018000622450055000802600026001355460012001610050017001730STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aHeatley, D.P.  aDiplomacy and the study of International Relations  bClarendon pressc1919  aEnglish20220125165449.0