3 treff

Dutch elm disease, the early papers : selected works of seven Dutch women phytopathologists
translated and prepared by Francis W. Hol...
Bok Engelsk 1990
Dutch elm disease : proceedings of IUFRO conference, Minneapolis, St. Paul, USA, September 1973
International Union of Forestry Research Organizations
Bok Engelsk 1975
De iep "Groeneveld" = : The Groeneveld elm
Heybroek, H.M.
Bok Nederlandsk 1964