TY  - BOOK
AU  - Beckwith,Harry
TI  - Selling the invisible: a field guide to modern marketing 
SN  - 0446520942
PY  - 1997///
CY  - New York
PB  - Warner Books
KW  - Service industries
KW  - Marketing
N1  - Gift; Includes bibliographical references (p. 246-250)
ER  -