000 00325nam a22001337a 4500
003 OSt
008 240311b |||||||| |||| 00| 0 eng d
082 _a016.631
_bR16I
100 _aRamos, M.M.
245 _aInternational bibliography on cropping systems 1976
260 _aI R R I
_c1978
300 _a181
942 _2ddc
_cRFB
999 _c37958
_d37958