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平台:
EBSCOhost Business Source Complete
(Available from 2000/01/01 until 2008/10/31.)
EBSCOhost Environment Complete
(Available from 2000/01/01 until 2008/10/31.)
EBSCOhost OmniFile Full Text Select
(Available from 1997/01/01 until 2008/10/31.)
ProQuest Agricultural & Environmental Science Database
(Available from 1987/12/01 volume: 49 issue: 12 until 2008/10/31 volume: 70 issue: 10.)
ProQuest SciTech Premium Collection
(Available from 1987/12/01 volume: 49 issue: 12 until 2008/10/31 volume: 70 issue: 10.)