LAND TYPES AND AGRICULTURAL REGIONALIZATION IN THE CHANG PING COUNTY,BEIJING
Shen Yuancun, Xie Xiangrong, Yang Liulin
SCIENTIA GEOGRAPHICA SINICA ›› 1982, Vol. 2 ›› Issue (3) : 221-231,292.
LAND TYPES AND AGRICULTURAL REGIONALIZATION IN THE CHANG PING COUNTY,BEIJING
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