Shi jie ran liao wen ti
Series: Xian dai wen ti cong shu.  Wan you wen ku, di 1, 2 ji jian bian
Publisher: Shang wu yin shu guan
Published: 1939
Place of publication: Changsha
Language: chi
Number of pages: 7283
Subjects: Coal mines and mining -- Statistics; Coal trade; Coal mines and mining -- China