Swarup, R. .
Encyclopaedia of ecology, environment and pollution control / by R. Swarup, S.N. Mishra and V.P. Jauhari. - New Delhi : Mittal Publications , 1992 - 15 vols ;
81-7099-360-1
Environment
G:5 / P2.5
Encyclopaedia of ecology, environment and pollution control / by R. Swarup, S.N. Mishra and V.P. Jauhari. - New Delhi : Mittal Publications , 1992 - 15 vols ;
81-7099-360-1
Environment
G:5 / P2.5