Classification. Class Q: science.
Contributors: Gale Research Company.; Library of Congress. Classification Division.
Edition: 6th ed.
Publisher: Library of Congress; [for sale by the Card Division]
Published: 1973
Place of publication: Washington
Language: eng
Number of pages: 415
Subjects: Classification -- Books -- Science.; Classification, Library of Congress.
Notes: Kept up to date by the Division's L.C. classification--additions and changes, and by two publications irregularly issued by Gale Research Company entitled: Library of Congress classification schedules--a cumulation of additions and changes, Class Q; and Library of Congress classification schedules combined with additions and changes.
First ed. published in 1905 by the Classification Division.
Includes index.