中國石炭之分類
Published: 1926
Place of publication: China
Language: chi; eng
Number of pages: 24
Subjects: Coal
Other titles: Zhongguo shi tan zhi fen lei
Notes: Zhai yin: Zhongguo di zhi diao cha suo di zhi hui bao di ba hao, Min guo 15 nian 12 yue.