Classification. Class A: General works, polygraphy.
By: Adopted 1911. As in force June, 1915.
Contributors: Martel, Charles, 1860-; Perley, Clarence Warner, 1867-; Library of Congress. Classification Division.
Publisher: Govt. print. off.
Published: 1915
Place of publication: Washington
Language: eng
Number of pages: 63
Subjects: Classification -- Books -- General works
Notes: At head of title: Library of Congress.
First issued 1911 under the direction of Mr. Charles Martel, chief classifier; present edition, Mr. Clarence W. Perley, chief classifier.