PDF(788 KB)
STUDY ON EXPLOITATION OF SANDY LAND RESOURCE AND AGRICULTURAL DEVELOPMENT IN SONGNEN PLAIN
Li Qusheng, Qiu Shanwen
GEOGRAPHICAL SCIENCE ›› 1997, Vol. 17 ›› Issue (3) : 259-264.
PDF(788 KB)
PDF(788 KB)
STUDY ON EXPLOITATION OF SANDY LAND RESOURCE AND AGRICULTURAL DEVELOPMENT IN SONGNEN PLAIN
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