Guide to MEDLARS services;
a brief description of the system with emphasis on the automated bibliographic search service.

APA Citation

National Library of Medicine (U.S.). (1971). Guide to MEDLARS services: a brief description of the system with emphasis on the automated bibliographic search service. Rev. Bethesda, Md..

MLA Citation

National Library of Medicine (U.S.). Guide to MEDLARS Services: a Brief Description of the System With Emphasis On the Automated Bibliographic Search Service. Rev. Bethesda, Md., 1971.