TY  - BOOK
AU  - McGarry, K. J.
AU  - Burrell, T. W.
TI  - Logic in the organisation of knowledge: a programmed text for st udents of information retrieval 
SN  - 0208011722
U1  - 020.77 MACG 
PY  - 1972///
CY  - London
PB  - C. Bingley
KW  - Library science
KW  - Programmed instruction
KW  - Logic
ER  -