TY  - BOOK
AU  - Borko, Harold.
AU  - Bernier, Charles L.
TI  - Abstracting concepts and methods
T2  - Library and information science series
U1  - 029.4 
PY  - 1975///
CY  - New York
PB  - Academic Press
KW  - Trabajos científicos
KW  - Resúmenes
ER  -