Chhatwal, G.R..
Encyclopaedia of environmental management Vol.1. / by G.R.Chhatwal. - 1st ed / - New Delhi : Anmol Publications Pvt.Ltd. , 1971 - vii,411p ;
81-7488-648-6
Life Science
G:55(X:8)k / N8.1
Encyclopaedia of environmental management Vol.1. / by G.R.Chhatwal. - 1st ed / - New Delhi : Anmol Publications Pvt.Ltd. , 1971 - vii,411p ;
81-7488-648-6
Life Science
G:55(X:8)k / N8.1