Helan Xian wei sheng zhi
By: Helan Xian wei sheng he ren kou ji hua sheng yu ju
Edition: Di 1 ban
Publisher: Helan Xian wei sheng he ren kou ji hua sheng yu ju]
Published: 2006
Place of publication: [Helan Xian
Language: chi
Number of pages: 251
Subjects: History; Public health