Xia Fengyi. Raw Energy and Uninterrupted Development of Agriculture[J]. JOURNAL OF YUNNAN AGRICULTURAL UNIVERSITY(Natural Science), 1999, 14(2): 211-214.
Citation:
Xia Fengyi. Raw Energy and Uninterrupted Development of Agriculture[J]. JOURNAL OF YUNNAN AGRICULTURAL UNIVERSITY(Natural Science), 1999, 14(2): 211-214.