025.431
D533W
           Dhyani, Pushpa
               Working with Dewey Decimal Classification (editions 19 and 20) \ Pushpa Dhyani - New Delhi : Vikas Publishing house, 1994.
               vi, 169p.
                ISBN: 0-7069-7623-1

134363
                Subjects: Classification, Dewey Decimal; Classification-Book.