31. [RSD/PSD mobile camera in the stack area] Publication: [196-?] Subject(s): MicrofilmingAfrican AmericansNational Library of Medicine (U.S.). Reference Services Division.
32. A summary checklist of medical manuscripts on microfilm: held by the National Library of Medicine Author(s): National Library of Medicine (U.S.). History of Medicine Division. Publication: Bethesda, Md. : U.S. Dept. of Health, Education, and Welfare, National Institutes of Health, National Library of Medicine, [1968?] Subject(s): Manuscripts, MedicalMicrofilming
