000 00433 a2200157 4500
020 _a0813820790
041 _aeng
082 0 _a632 NYV
100 1 _a Nyvall, Robert F.
_9165293
245 _aField crop diseases
_cRobert F. Nyvall
250 _a3rd ed.
260 _bIowa State university Press,
_c1999.
_aLowa :
300 _axxx, 1021 p. ;
_c24 cm.
650 4 _aCrop diseases
_9165294
650 4 _aCrop field
_9165295
999 _c288469
_d288405