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1by Pei Bachua, International Poplar Commission eng 5-8 Sep 1988 Sess. 18 Beijing (China), Zheng Junbao, Bai Yangmin, Che Jianzhong
Published 1988Texto bibliotecaFAO IT -
2by Pei Baohua, International Poplar Commission eng 22-25 Sep 1992 Sess. 19 Zaragoza (Spain), Jiang Xiangning, Zheng Junbao, Zheng Shikai, Liu Fengjue
Published 1992Texto bibliotecaFAO IT -
3by Pei Baohua, International Poplar Commission eng 22-25 Sep 1992 Sess. 19 Zaragoza (Spain), Jiang Xiangning, Zheng Junbao, Zheng Shikai, Liu Fengjue
Published 1992Texto bibliotecaFAO IT