Classification. Class Q: Science.
Contributors: Library of Congress. Classification Division.
Edition: 5th ed., with supplementary pages.
Publisher: For sale by the Superintendent of Documents, U.S. Govt. Print. Off.
Published: 1963
Place of publication: Washington
Language: eng
Number of pages: 215
Subjects: Classification -- Books -- Science.
Notes: "Additions and changes to July 1962": 65 p. at end.