TY  - BOOK
AU  - Selden,Larry
AU  - Colvin,Geoffrey
TI  - Angel customers & demon customers: discover which is which and turbo-charge your stock 
SN  - 9781591840077
AV  - HF5415.5 .S449 2003
PY  - 2003///
CY  - New York
PB  - Portfolio
KW  - Customer relations
ER  -