000 00513nam a22001817a 4500
001 BD-DhSAU 6453
003 BD-DhSAU
005 20150508180934.0
008 150508b1981 ph a|||| |||| 00| 0 eng d
040 _aBD-DhSAU
082 _222
_a631.582
_bZAM
100 _a Zandstra, H. G.
245 _aA methodology for on-farm cropping systems research /
_cby H. G. Zandstra....[et. al. ]
260 _aManila :
_bIRRI ,
_cc1981.
300 _a147 p.:
_bill. ;
_c23 cm.
590 _aIMRAN
650 _a Cropping systems
942 _2ddc
_cBOOK
999 _c6453
_d6453