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Gao ji xiao xue zi ran ke ben, di 3 ce (Natural science textbook for higher primary schools, volume 3).

Junzheng Gu (comp)

出版	Shanxi ren min chu ban she (Shanxi People's Publishing Company), 1951
URL	http://books.google.com.hk/books?id=VfIuMgAACAAJ&hl=&source=gbs_api