TY  - BOOK
AU  - Schwartz Barry
TI  - Vartical classification :  A study in structuralism   
SN  - 0226742083
U1  - R2, M1 
PY  - 1981///
CY  - Chicago
PB  - University of Chicago Press       
KW  -  Philosophy
KW  - Epistemology
N1  - Bibliography: P 219-35
ER  -