21. [BSD MEDLINE data processing] Publication: [197-?] Subject(s): LibrariansLibrary AutomationNational Library of Medicine (U.S.). Index Section.
22. [Yvonne Scott sitting at a punch card machine] Publication: [197-?] Subject(s): LibrariansLibrary AutomationAfrican AmericansNational Library of Medicine (U.S.). Index Section.
23. [BSD MEDLINE computer] Publication: [1974?] Subject(s): Library AutomationNational Library of Medicine (U.S.). Index Section.
24. [Texas Instrument Silent 700] Publication: [197-?] Subject(s): Library AutomationNational Library of Medicine (U.S.). Index Section.
25. [MEDLINE staff uses Execuport 300] Publication: [197-?] Subject(s): LibrariansLibrary AutomationNational Library of Medicine (U.S.). Index Section.
26. AVLINE terminal Publication: 1975 Subject(s): Library AutomationNational Library of Medicine (U.S.)
27. [MEDLINE's Silent 700 by Texas Instruments] Publication: 1977 Subject(s): Library AutomationNational Library of Medicine (U.S.). Index Section.
28. [Computer for MEDLINE users] Publication: [197-?] Subject(s): Library AutomationNational Library of Medicine (U.S.). Index Section.
29. [Librarian Yvonne Scott dials for a mainframe connection] Publication: Produced: [between 1974 and 1977?] Subject(s): MEDLINELibrariansModemsComputers, MainframeLibrary AutomationNational Library of Medicine (U.S.)