PDF(268 KB)
Integrated Demarcation and Building Measures on Ecological Environment in Northwest China
LIU Yin-han, GUAN Hai yan, LI Hou di, WANG Yong, LIU Xiao jing
PROGRESS IN GEOGRAPHY ›› 2002, Vol. 21 ›› Issue (5) : 403-409.
PDF(268 KB)
PDF(268 KB)
Integrated Demarcation and Building Measures on Ecological Environment in Northwest China
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