APA (7th ed.) Citation

(1971). Guide to MEDLARS Services; A Brief Description of the System With Emphasis on the Automated Bibliographic Search Service. Revised.

Chicago Style (17th ed.) Citation

Guide to MEDLARS Services; A Brief Description of the System With Emphasis on the Automated Bibliographic Search Service. Revised. 1971.

MLA (9th ed.) Citation

Guide to MEDLARS Services; A Brief Description of the System With Emphasis on the Automated Bibliographic Search Service. Revised. 1971.