Books by Helena Zinkham:
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Zinkham, Helena, ed.: Thesaurus for Graphic Materials, also ed. by Elisabeth Betz Parker
Additional books by Helena Zinkham in the extended shelves:
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Zinkham, Helena: Descriptive terms for graphic materials : genre and physical characteristic headings (Cataloging Distribution Service, Library of Congress, 1986), also by Elisabeth Betz Parker and Library of Congress. Prints and Photographs Division (page images at HathiTrust)- Zinkham, Helena: Thesaurus for graphic materials (Library of Congress, Cataloging Distribution Service, 1995), also by Library of Congress. Prints and Photographs Division and Elisabeth Betz Parker (page images at HathiTrust)
Find more by Helena Zinkham at your library, or elsewhere.