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6by Lapietra, G., International Poplar Commission. Working Party on Insects and Other Animal Pests eng 22-25 Sep 1986 Sess. 11 Louvain La Neuve (Belgium), Allegro, G.
Published 1986Texto bibliotecaFAO IT -
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8by Lapietra, G., FAO, Rome (Italy). Forestry Dept. eng, International Poplar Commission. Working Party on Poplar Insect Pests eng 19-23 Mar 1990 Sess. 13 Buenos Aires (Argentina), Allegro, G.
Published 1990Texto bibliotecaFAO IT -
9by Lapietra, G., FAO, Rome (Italy). Forestry Dept. eng, International Poplar Commission. Working Party on Poplar Insect Pests eng 19-23 Mar 1990 Sess. 13 Buenos Aires (Argentina), Allegro, G.
Published 1990Texto bibliotecaFAO IT -
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12by Allegro, G., International Poplar Commission eng 1-4 Oct 1996 Sess.20 Budapest (Hungary), Picco, F., Bianco, B. (Istituto di Sperimentazione per la Pioppicoltura, Casale Monferrato (Italy)), 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