Po yi tian shu
Subtitle: Poyitianshu
By: Yang Rui bian zhu.
Edition: Di 1 ban
Publisher: Ningxia ren min chu ban she
Published: 2008
Place of publication: Yinchuan Shi
Language: chi
Number of pages: 132
ISBN-13: 9787227036142
Subjects: Tangut language; Tangut characters
Other titles: Poyitianshu.