This twentienth volume of ABHB (Annual bibliography oj the history oj the printed book and libraries) contains 3899 records, selected from some 2000 periodicals, the list of which follows this introduction. They have been compiled by the National Committees of the following countries: Latin America Arab countries Luxembourg Australia The Netherlands Austria Norway Belgium Poland Bulgaria Portugal Canada Rumania Denmark South Africa Finland Spain France Sweden German Democratic Republic Switzerland German Federal Republic USA Great Britain USSR Hungary Yugoslavia Ireland (Republic of) Italy...