TY  - BOOK
AU  - Gaumann Ernst `
TI  - Principles of plant infection : Textbook of general plant pathology
U1  - J:4, J0 
PY  - 1950///
CY  - London
PB  - Crosby Lockwood        
KW  -  Plant disease
KW  - Agriculture
N1  - Literature p
ER  -