TY  - BOOK
AU  - Madden Gary Ed.
AU  -  Cooper Russel Ed.
TI  - Economics of digital markets
U1  - X:8:(D6,8(B),2775), P9 
PY  - 2009///
CY  - Cheltenham
PB  - Edward Elgar      
KW  - Buisness Economics
ER  -