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1
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2Digital revistaSCIELO
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3Digital revistaSCIELO
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4Digital revistaSCIELO
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5by Yan Junjie, International Poplar Commission eng 1-4 Oct 1996 Sess.20 Budapest (Hungary), Ji Dianrong, Huang Dazhuang, Wang Zhigang, Yan Yehui (Hebei Agricultural Univ., Baoding (China)), Bach, I. (ed.), Commission Internationale du Peuplier fre 1-4 Oct 1996 Sess.20 Budapest (Hungary), Comision Internacional del Alamo spa 1-4 Oct 1996 Sess.20 Budapest (Hungary)
Published 1996Texto bibliotecaFAO IT