مواد مشابهة

• Library of Congress classification schedules: a cumulation of additions and changes through 1978 : Class Z, Bibliography and library science
  منشور في: (1980)
• Library of Congress classification schedules, a cumulation of additions and changes through 1981.
  منشور في: (1983)
• Library of Congress classification schedules, a cumulation of additions and changes through 1981, Class Z : bibliography and library science /
  منشور في: (1982)
• Library of Congress classification schedules: a cumulation of additions and changes through 1978 : Class S, agriculture, plant and animal industry, fish culture and fisheries, hunting sports
  منشور في: (1980)
• Library of Congress classification. Z. Bibliography and library science /
  منشور في: (1995)