TY  - BOOK
TI  - Logic of personal knowledge: essays presented to Michael Polanyi on his 70th birthday, 11th March, 1961
U1  - 040 
PY  - 1961///
CY  - London
PB  - Routledge & Kegan Paul
KW  - General collected essays
KW  - Michael Polanyi
ER  -