AU  - Kumar,H.D..
TI  - Modern Concepts Of Ecology / 
SN  - 0 7069 0501 6
U1  - 581.5 
PY  - 1977///
CY  - N.Delhi
PB  - Vikas Publishing House Pvt Ltd , 
KW  - Botany
N1  - NULL
ER  -