LINGO LIBRARY · 35530Fundamental Peace Ideas including The Westphalian Peace Treaty (1648) and The League Of Nations (1919) in connection with International Psychology and Revolutions✳MacDonald, ArthurENB2 · EstimatedFundamental Peace Ideas including The Westphalian Peace Treaty (1648) and The League Of Nations (1919) in connection with International Psychology and RevolutionsMacDonald, Arthur