 PDF(214 KB)
						
							PDF(214 KB) 
						
						
					 
			Characteristics and Differences of Agricultural Inputs in Metropolitan Suburb:A Case Study in Pinggu Distract of Beijing
LU Chang-he, QI Yong-hua, ZHANG Feng-rong
Resources Science ›› 2007, Vol. 29 ›› Issue (4) : 13-17.
 PDF(214 KB)
						
							PDF(214 KB) 
						
						
					 PDF(214 KB)
						
							PDF(214 KB) 
						
						
					Characteristics and Differences of Agricultural Inputs in Metropolitan Suburb:A Case Study in Pinggu Distract of Beijing
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