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003 OSt
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024 _a57835
037 _cTextual
040 _aCSL
_beng
_cCSL
041 _aeng
082 _aJ:4b4, G6
100 _aRiker A J
245 0 _aIntroduction to research on plant diseases
260 _c1936
300 _ap.
_ccm.
650 _aAgriculture
942 _hJ:4b4, G6
_cTEXL
_2CC
999 _c81984
_d81984