Ziyi Li <br/><br/>
Kao gu ru keng zhi nan 
 Qingdai ZhongChao bianjie shi tanyan 
Ziyi Li 
 - Di 1 ban. 
 - Shanghai:  Shanghai Ancient Books Publishing House,  2017. 
 - 139 pages :  color illustrations  23 cm 
<br/><br/><label>ISBN: </label>9787532585403 
<br/><br/><label>LC Class. No.: </label>CHI001018