TY  - BOOK
TI  - The Open University of Sri Lanka : Course of Study Leading to the Degree of Bachelor of Science : Botany : Plant Pathology level 5 - PSU 3109
U1  - 581.2 
PY  - 1989///, 1991
CY  - Nawala
PB  - Open University of Sri Lanka
KW  - Plant Pathology
ER  -