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平台:
JSTOR Arts and Sciences XIV
(Available from 1991/02/01 volume: 1 issue: 1. Most recent 4 year(s) not available.)
ProQuest Agricultural & Environmental Science Database
(Available from 1998/01/01. Most recent 3 year(s) not available.)
ProQuest Biological Science Database
(Available from 1998/01/01. Most recent 3 year(s) not available.)
ProQuest Earth, Atmospheric & Aquatic Science Database
(Available from 1998/01/01. Most recent 3 year(s) not available.)
ProQuest SciTech Premium Collection
(Available from 1998/01/01. Most recent 3 year(s) not available.)