TY  - GEN
AU  - G.E. HUGHES
AU  - D.G. LONDEY
TI  - THE ELEMENTS OF FORMAL LOGIC
U1  - 160/HUG/ELE 
PY  - 1967///
CY  - BOMBAY
PB  - B.I. PUBLICATIONS
KW  - 100 Philosophy & psychology
KW  - 160 Logic
ER  -