Classification. Class Q: Science.
Contributors: Library of Congress. Classification Division.
Edition: 5th ed., with supplementary pages.
Publisher: [U. S. Govt. Print. Off.]
Published: 1967
Place of publication: Washington
Language: eng
Number of pages: 215
Subjects: Classification -- Books -- Science.
Notes: First ed. published in 1905 by the Classification Division.
Additions and changes to July 1966": 129 p. at end.