THE CHANGES OF VEGETATION AND CLIMATE IN PINGLIANG REGION,GANSU PROVINCE SINCE ABOUT 800 000 YR B.P.
Liu Junfeng, Su Ying
GEOGRAPHICAL RESEARCH ›› 1994, Vol. 13 ›› Issue (4) : 90-97.
THE CHANGES OF VEGETATION AND CLIMATE IN PINGLIANG REGION,GANSU PROVINCE SINCE ABOUT 800 000 YR B.P.
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