An explanation of the Superintendent of Documents classification system.
Contributors: United States. Superintendent of Documents. Depository Administration Branch.
Edition: Rev. 1990.
Series: GPO publication ;; 500.5
Publisher: Depository Administration Branch, Library Division, Library Programs Service, U.S. G.P.O.
Published: 1990
Place of publication: Washington, DC
Language: eng
Number of pages: 14
Subjects: Superintendent of Documents Classification system.
Notes: "October 1990"--Cover.