Comaromi, John P . Manual on the use of the Dewey Decimal Classification : edition 19 / edited by John P. Comaromi and Margaret J. Warren. - USA : Forest Press , 1982. - 551p. : chart ; 22cm . Includes index ISBN: 0910608326 USD 21.00 Subjects--Index Terms: DDC Dewey Class. No.: 025.431 / COM/M