00621cam a2200145u  4500008004100000020001500041245018200056260005700238300002500295650004200320650003600362650003500398700001900433050002300452850118s1976    xx            100 0 chi    a780003077600aPotentialities of agricultural engineering in rural development (Vol. I).bProceedings of international symposium on agricultural engineering (89-ISAE).cEdited by Wang Mao-hua.  c[1989]aBeijing:bInternational Academic Publishers.  axix, 658 p. ;bill.: 0aAgricultural engineeringvCongresses. 0aFarm mechanizationvCongresses. 0aRural developmentvCongresses.  aMao-hua, Wang.00aS760.T28bC47 1976