TY  - BOOK
AU  - Selden, Larry
AU  - Colvin, Geoffrey
TI  - Angel customers & demon customers : discover which is which and turbo-charge your stock
SN  - 9781591840077
U1  - 658.812 SEL 
PY  - 2003///
CY  - New York
PB  - Portfolio
KW  - Customer relations
ER  -