000 00371nam a22001337a 4500
005 20251210122709.0
008 251210b |||||||| |||| 00| 0 eng d
050 _aS623 .C3 1991
100 _aCOUPER , D .C .
245 _aUSE OF GRADED CONTOUR BANKS FOR SOIL CONSERVATION
_cDOUGLAS C . COUPER
260 _aIBADAN
_bIITA
_c1991
300 _a24p.:ill.;
_bpbk
942 _cBK
999 _c26844
_d26844