TY  - BOOK
AU  - Jaipal Singh
TI  - Leaf blight of roses caused by Alternaria alternata (Fr.) Keissler
U1  - T 635.933.3 J20L 
PY  - 1969///
CY  - Ludhiana
PB  - PAU
KW  - ROSES -- DISEASES AND PESTS
KW  - PLANT DISEASES
ER  -