Yazar
John Newton Gibbs
6 cilt bulundu.
Cilt sonuçları
Biology of Dutch Elm Disease
John Newton Gibbs · Stationery Office, The
Sayfa sayısı yok · 1974
Trees, diseases and pests / Botany, great britain
Control of Dutch Elm Disease
D. A. Burdekin, John Newton Gibbs · Stationery Office, The
Sayfa sayısı yok · 1972
Plant diseases, great britain
Dutch Elm Disease Survey, 1972-73
John Newton Gibbs, Rex Spencer Howell · Stationery Office, The
Sayfa sayısı yok · 1975
Phytopathogenic fungi
Dutch Elm Disease
John Newton Gibbs, D. A. Burdekin, C. M. Brasier · Stationery Office, The
Sayfa sayısı yok · 1977
Phytopathogenic fungi