Zhongguo jin shu kuang de di zhi yu di qiu wu li kan cha
by Guangding Liu, Bingguang Liu, Jianming Liu
Ore depositsMines and mineral resourcesGold mines and mining
Writing a summary for young readers…
For young readers
Book data: Open Library
by Guangding Liu, Bingguang Liu, Jianming Liu
Book data: Open Library