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          Price Elasticity of Production Factors in Beijing's Picking Gardens
          
                
          
                
          
                          
                         
		          
                    2020-09-17
                
          
            
          
              
                
          
                    
                    
          

          作者：Du, Na; Shao, Qianqian; Hu, Ruifa
          


          發(fā)表刊物：Sustainability
          


          


           
          
                    
             
                
          
                
                
				
				        
				
				            
          

        
          
    

          


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