文章摘要
Effect of agriculture mechanization on the cost of production of major food crops in Hebei
  
DOI:10.3969/j.issn.1004-874X.2012.21.070
Author NameAffiliation
付秀彬 河北金融学院管理系,河北保定,071051 
Hits: 992
Download times: 333
Abstract:
      
View Full Text   View/Add Comment  Download reader