TY  - BOOK
AU  - Malerba,Franco
AU  - Nelson,Richard R.
TI  - Economic development as a learning process: variation across sectoral systems 
SN  - 9780857937889
AV  - HD82 .E28 2012
PY  - 2012///
CY  - Cheltenham
PB  - Edward Elgar
KW  - Economic aspects
ER  -