JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 1995, Vol. 19 ›› Issue (02): 34-38.doi: 10.3969/j.jssn.1000-2006.1995.02.007
Previous Articles Next Articles
Ma Tianle; Liu Can(Nanjing Forestry University Nanjing 210037) (Reseach Institute of Forestry Economics CAF)Zhang Yichuan