TY  - BOOK
AU  - Lancaster, Frederick Wilfrid.
AU  - Joncich, M. J.
TI  - The measurement and evaluation of library services
U1  - 021 
PY  - 1977///
CY  - Arlington, Va.
PB  - Information Resources Press
KW  - Bibliotecas
KW  - Evaluación
N1  - c.2 en fotocopia
ER  -