1977 book
Documents Office classification including an explanation of the Superintendent of Documents classification system and an alphabetical index of U.S. Government author organizations
Arlington, Va: US Historical Documents Institute.
1971 book
1909 checklist, correlation index as indicated in "Departmental publications" part: serial number to classification number
Raleigh, NC: DH Hill Library, North Carolina State University, Raleigh, North Carolina.
1970 book
Author index (with titles) to Monthly catalog of United States government publications, 1947-1962
Ann Arbor, Mich: University Microfilms.
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