TY  - BOOK
AU  - Walton, Douglas
TI  - Burden of Proof, Presumption and Argumentation
SN  - 9781107046627
AV  - K 2263 .W35 2014
PY  - 2014///
CY  - New York
PB  - Cambridge University Press  
KW  - Burden of Proof
KW  - Proof theory
ER  -