Download or read book Dewey Decimal Classification, 20th Edition written by Jeanne Osborn and published by Englewood, Colo. : Libraries Unlimited. This book was released on 1991 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work traces recent developments in the Dewey Decimal Classification and points to those characteristics which appear to be shaping its future. Although designed for use with previous editions of DDC, this offers reliable explanation and drill. The present study is more concerned with differences between DDC 19 and DDC 20.