Columbia subject headings:
Library of Congress catalogs.
Manuscripts--Washington (D.C.)--Catalogs.
Harvard subject headings:
Library of Congress--Catalogs.
Library of Congress--Handbooks, manuals, etc.
Manuscripts--Washington (D.C.)--Catalogs.
Manuscripts--Washington (D.C.)--Handbooks, manuals, etc.
Princeton subject headings:
Catalogs.
Library of Congress--Catalogs.
Manuscripts--Washington (D.C.)--Catalogs.