1. [Library indexer] Publication: Produced: [between 1960 and 1969?] Subject(s): MEDLARSAbstracting and Indexing as TopicLibrariansNational Library of Medicine (U.S.). Index Section.National Library of Medicine (U.S.).
2. [Staff member preparing data sheet] Publication: Produced: [between 1960 and 1969?] Subject(s): MEDLARSAbstracting and Indexing as TopicNational Library of Medicine (U.S.). Index Section.National Library of Medicine (U.S.).
3. [Computer operators working with tape-driven Honeywell 800 mainframe computer] Publication: Produced: [between 1963 and 1969?] Subject(s): MEDLARSLibrariansComputers, MainframeLibrary AutomationNational Library of Medicine (U.S.). Office of Computer and Communications Systems.
