Title: Xian dai lao dong jing ji xue
Description: Ben shu gong 16 zhang,Nei rong bao kuo lao dong li shi chang gai lun,Lao dong li xu qiu dan xing,Lao dong li shi chang zhong de mo ca li,Bu chang xing gong zi cha bie yu lao dong li shi chang,Gong hui he lao dong li shi chang deng.
Subjects: Lao dong jing ji xue