Zhang, Yongjin <br/><br/>
China in the international system 1918-20 :  the middle kingdom at the periphery / 
Zhang Yongjin 
 - Houndmills :  MacMillan,  1991 
 - 262 p. ;  23 cm. 
<br/><br/><label>ISBN: </label>0333536827 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>China--Foreign relations--1912-1949