Y. Liu,W.Y. Ta,T.Y. Bao,et al. Trace elements in tree rings and their environmental effects: A case study in Xi'an City[J]. Science in China Series D-Earth Sciences,2009,52(4):504-510.
APA
Y. Liu.,W.Y. Ta.,T.Y. Bao.,Z.Y. Yang.,H.M. Song.,...&Z.S. An.(2009).Trace elements in tree rings and their environmental effects: A case study in Xi'an City.Science in China Series D-Earth Sciences,52(4),504-510.
MLA
Y. Liu,et al."Trace elements in tree rings and their environmental effects: A case study in Xi'an City".Science in China Series D-Earth Sciences 52.4(2009):504-510.
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