赵玲燕2019-09-252019-09-252017-03-032007-04-01http://hdl.handle.net/20.500.12424/492911chiWith permission of the license/copyright holder颜惠庆外交思想外交实践外交策略W.W. Yenthe diplomatic thoughtsthe diplomatic practicesthe diplomatic strategy北京政府时期颜惠庆的外交思想及实践 [W.W. Yen' Diplomatic Thoughts and Practices during Peking Government Period]Thesis