TY  - BOOK
AU  - Bos, L 
TI  - Symptoms of virus diseses in plants: With indexes of names of symptoms in English, dutch, German, French, Italian, and Spanish 
PY  - 1963///
CY  - New Delhi: 
PB  - Oxford & IBH Publishing Co., 
KW  - Agriculture
KW  - Plants
KW  - Growth reduction
ER  -