TY  - BOOK
AU  - Devala Devi, Labuktongbam.
TI  - Efect of Photoperiod on the Biology of the Aphid, Cervaphis quercus, Takahashi (Homoptera: Insecta) / 
PY  - 1990///
CY  - Imphal : 
PB  - Manipur University , 
KW  - Life Sciences
ER  -