TRENDS AND BASIC CAUSES OF THE REGIONAL PATTERN CHANGES IN CHINA’S GRAIN PRODUCTION SINCE 1950’S
Lu Qi, Lu Minglun
PROGRESS IN GEOGRAPHY ›› 1997, Vol. 16 ›› Issue (1) : 31-36.
TRENDS AND BASIC CAUSES OF THE REGIONAL PATTERN CHANGES IN CHINA’S GRAIN PRODUCTION SINCE 1950’S
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