Virus and virus-like diseases of poplar; are they threatening diseases.
By: S. Navratil.
Publisher: s.n
Published: 1977
Place of publication: S.l
Notes: In D. C. F. Fayle, L. Zsuffa and H. W. Anderson (eds). Proc. No. Am. Poplar Council Ann. Meeting. Poplar Research, Management and Utilization in Canada. Ministry of Nat. Resources. For. Res. Inf. Paper No. 102. 17pp.

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