Library of Congress, Library of Congress. Cataloging Policy and Support Office, & Library of Congress. Subject Cataloging Division. (1995). Library of Congress classification. Z. Bibliography and library science (1995 ed.). Library of Congress, Cataloging Distribution Service.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Library of Congress, Library of Congress. Cataloging Policy and Support Office, و Library of Congress. Subject Cataloging Division. Library of Congress Classification. Z. Bibliography and Library Science. 1995 ed. Washington, D.C.: Library of Congress, Cataloging Distribution Service, 1995.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Library of Congress, et al. Library of Congress Classification. Z. Bibliography and Library Science. 1995 ed. Library of Congress, Cataloging Distribution Service, 1995.