TY  - BOOK
AU  - Alchin, Nicholas
TI  - Theory of knowledge : for the IB diploma 
SN  - 978 1 471 80415 1
U1  - 121 ALC 
PY  - 2014///
CY  - London 
PB  -   Hodder Education
KW  - CRITICAL THINKING STUDY AND TEACHING SECONDARY GREAT BRITAIN
ER  -