000			00443nam a22001337a 4500
008			140301b xxu||||| |||| 00| 0 eng d
082			_aFil. 630.7 Sy6 _bc1977
110			_93954 _aIRRI
245			_aSymposium on cropping systems research and development for the asian rice farmer/
260			_aLaguna : _bThe International Rice Research Institute, _cc1977.
300			_a454 p. :
650			_xCrop rotation _xCropping system
942			_2ddc _cFIL
999			_c1758 _d1758