TY  - BOOK
AU  - McCrum,Blanche Prichard
ED  - United Nations.
TI  - Microfilms and microcards: their use in research: a selected list of references 
U1  - 025.179 
PY  - 1950///
CY  - Washington
PB  - Library of Congress
KW  - Microforms
KW  - Catalogs
KW  - Microphotography
KW  - Bibliography
ER  -