TY  - BOOK
AU  - R S Singh
TI  - Introduction to Principles of Plant Pathology
SN  - 8120401786
U1  - 632 SIN/IN 
PY  - 1984///
CY  - New Delhi
PB  - Oxford & IBH
KW  - introduction
KW  - history of plant pathology
KW  - causes of plant diseases
ER  -