TY  - BOOK
AU  - Davinson,Donald
TI  - Reference service / 
SN  - 085157291X
U1  - 025.52 
PY  - 1980///
CY  - London
PB  - Clive Bingley, 
KW  - Library and information sciences
KW  - Reference services
KW  - Information services
KW  - Indexing
KW  - Evaluation
KW  - Control samples
ER  -