TY  - BOOK
AU  - Hughes, G. E.
AU  -  Londey, D. G.
TI  - Elements of formal logic / 
SN  - 9781032808680
U1  - 160 
PY  - 2025///
CY  - London : 
PB  - Routledge
KW  -  Elements
KW  - Logic
ER  -