NASA Thesaurus: Volume 1: hierarchical listing / National Aeronautics and Space Administration - Washington, D. C.: National Aeronautics and Space Administration, 1985 Vol. 1 (Hierarchical listing); xi, 838p. Subjects--Topical Terms: Library science Subjects--Index Terms: Thesaurus Universal Decimal Class. No.: D 025.43:629.7 / L6;M5.1