Sheng chan jing sai jing yan jie shao
By: Shanghai zong gong hui diao cha yan jiu shi bian
Series: Gong hui gong zuo can kao zi liao; Gong hui gong zuo can kao zi liao
Publisher: Lao dong chu ban she
Published: 1950
Place of publication: Shanghai
Language: chi
Number of pages: 178
Subjects: Labor productivity