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  1. pdfNLM Technical Bulletin, no.57-68 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/57-68-1974.pdf
    ... MEDLARS TECHNICAL BULLETIN - JULY 1974 Page 4 cross-references). ... number and cost will be announced when available. Item 3: New ...
  2. pdfNLM Technical Bulletin, no.81-92 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/81-92-1976.pdf
    ... 3 02- c > MANUAI . ON i INI;SLRVICI s REFERENCE MANUAI , Mai <h 1976, update and inde^ Jun / ... i" 1 ANNOTAITD Nov 76 ALF-HAUFFIC, 19^ SPP 76 MfDICAi SUBJECT HEAD [NLS IRFL ANNOTA1 TON. ...