TY  - BOOK
AU  - LESCHER,JOHN F.
TI  - ONLINE MARKET RESEARCH:?COS-EFFECTIVE SEARCH OF THE INTERNET AND ON LINE DATABASES / 
U1  - 658.830 
PY  - 1995///
CY  - [S.N] : 
PB  - ADDISON - WESLEY PUBLISHING COMPANY ، 
KW  - MARKETING - RESEARCH
KW  - ON LINE DATABASE
ER  -