TY  - BOOK
ED  - Asociación Nacional de Microfilm.
TI  - Compact efficiency:  : proceedings of the twenty-second annual conference and exposition
AV  - TR835 C66 1973
PY  - 1973///
CY  - Silver Spring, Maryland : 
PB  - The National microfilm Association, 
KW  - lemb
KW  - Microfotografía
N1  - Incluye índice
ER  -