363.7392
M678V
           Mishra, Sheo Gopal
               Vayu pradushan \ Sheo Gopal Mishra - Delhi : Gyan Ganga, 1994.
               112p.
                library has also new edition-2001

                ISBN: 81-85892-06-3

142529
                Subjects: Air-Pollution; Acid rain; Sulphur oxides.