TY  - BOOK
AU  - Sinclair,William Angus
TI  - The Traditional formal logic, a short account for students, by William Angus Sinclair,... [5th edition.]
PY  - 1957///
CY  - London
PB  - Methuen
UR  - http://catalogue.bnf.fr/ark:/12148/cb32633915j
ER  -