TY  - BOOK
AU  - Walford A J ed
TI  - Guide to reference material
U1  - a47,11N7, L3.1-3 (RR) 
PY  - 1973///
CY  - London
PB  - Library       
KW  - BIBLIOGRAPHY
N1  - Contents v1: Science to techonology ed3.   (vii,615p) v2: Social and historical sciences, Pholosophy and relation ed3. (vii,647p) v3: Generalities, Languages, The art and literature ed2. (vii,585p)
ER  -