363.73
V996J
           Vyas, Harish Chandra
               Jansankhya pradushan aur paryavaran \ Harish Chandra Vyas - New Delhi : Vidya Vihar, 1999.
               184p.
                ISBN: 81-85828-22-9

142515
                Subjects: Social problems; Population policy; Environmental science; Pollution-Environmental aspects.