The Contiguous Operations of Chinese Fir in Forest Region ofSoutheastern Guizhou During the Period from Qing Dynasty
LIU Qiugen, ZHANG Qiang
JOURNAL OF HEBEI UNIVERSITY (Philosophy and Social Science) . 2017, (1): 72 -78 .  DOI: 10.3969/j.issn.1005-6378.2017.01.012