TY  - BOOK
AU  - Grava,Arnolds
TI  - A structural inquiry into the symbolic representation of ideas
U1  - 120 
PY  - 1969///
CY  - The Hague
PB  - Mouton
KW  - Knowledge, Theory of
KW  - Concepts
KW  - Semantics (Philosophy)
KW  - Idea (Philosophy)
N1  - Bibliography : p. 165-176
ER  -