The national union catalog : a cumulative author list representing library of congress printed cards and titles reported by other american libraries - b; United States. Library of Congress; Resources committee of the resources and technical services division, American Library Association (Washington, D.C. : Library of Congress, 1971)
Pt.4.-.S-Z.-.1-1081 p.
April - June 1971
Keywords: Catalogs, Union; Libraries -- Catalogs