APA Style
Nianpei, Li. ().
Conservation for the twenty first centruy .
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Chicago Style
Nianpei, Li.
Conservation for the twenty first centruy.
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MLA Style
Nianpei, Li.
Conservation for the twenty first centruy.
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,
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.
Turabian Style
Nianpei, Li.
Conservation for the twenty first centruy.
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,
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.