TY  - BOOK
AU  - Walther,George R.
TI  - Upside-down marketing: turning your ex-customers into your best customers 
SN  - 9780070680487 
PY  - 1994///
CY  - New York : 
PB  - McGraw-Hill., 
KW  - Customer services
KW  - Management.
KW  - Marketing
KW  - Sales management.
N1  - Includes index; Includes index.
ER  -