Medical subject headings: Tree structures, 1982
Medical subject headings: Tree structures, 1982
/ National Library of Medicine, Bethesda, Maryland, July 1981
- Bethesda: National Library of Medicine, 1982
- iv, 446p.
Library science
Subject heading
D 025.343:61 / M2;1
Library science
Subject heading
D 025.343:61 / M2;1