Gilchrist , Alan . The UDC : essays for new decade / edited by Alan Gilchrist and David Strachan. - London : Aslib , 1990. - 97p. : ills ; 23cm . NULL ISBN: 0851422659 UKP 20.00 Subjects--Index Terms: UDC Dewey Class. No.: 025.432 / GIL/U