Trovati 4 documenti.
Trovati 4 documenti.
6. Aufl
Berlin : Parey, 1950
Plant pathology / by John Charles Walker
New York (etc.) : McGraw-Hill, 1950)
McGraw-Hill publications in the agricultural sciences
Plant disease handbook / by Cynthia Westcott
New York : Van Nostrand, 1950
Plant viruses and virus diseases / by F. C. Bawden
3. entirely revised ed
Waltham : Chronica botanica company, 1950
A new series of plant science books ; 25