TY  - BOOK
AU  - Zinkernagel peter
TI  - Conditions for description
T2  - International library of philosophy and scientific method ed by A J Ayer
U1  - R14, K23-;1 
PY  - 1962///
CY  - N.Y
PB  - Routledge and Kegan Paul    
KW  - PHILOSOPHY
ER  -