1. [Index Section staff using punch cards] Publication: Produced: [between 1960 and 1969?] Subject(s): Punched-Card SystemsLibrary AutomationLibrariansNational Library of Medicine (U.S.). Index Section.
2. [Lloyd L. Wommack from the Bibliographic Services Division Input Unit at the National Library of Medicine] Publication: Produced: [between 1960 and 1969?] Subject(s): LibrariansPunched-Card SystemsNational Library of Medicine (U.S.). Bibliographic Services Division.
