TY  - BOOK
AU  - Urquhart,Alasdair
AU  - Lewis,Albert C.
TI  - The collected papers of Bertrand Russell volume 4: foundations of logic, 1903-05 
SN  - 9780415094061
U1  - 51-7 
PY  - 1994///
CY  - London, New York
PB  - Routledge
KW  - Logic, Symbolic and mathematical
KW  - Mathematics
ER  -