TY  - BOOK
AU  - Schön, Donald A. 
TI  - Invention and the evolution of ideas
AV  - BD181  .S335 1963
PY  - 1967///
CY  - London, 
PB  - Tavistock Publications
KW  - Concepts
KW  - Idea (Philosophy)
KW  - Semantics (Philosophy)
ER  -