PDF(661 KB)
MAPPING OF SOIL BACKGROUND CONTENT MAP IN AGRICULTURAL REGIONS OF CHINA
Li Tingfang, Wu Huanzhong, Li Yujing
GEOGRAPHICAL RESEARCH ›› 1991, Vol. 10 ›› Issue (1) : 39-47.
PDF(661 KB)
PDF(661 KB)
MAPPING OF SOIL BACKGROUND CONTENT MAP IN AGRICULTURAL REGIONS OF CHINA
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