TY  - BOOK
AU  - Tull, Donald S. and Hawkins, Del I.
TI  - Marketing research: : measurement and method
SN  - 0029796407
U1  - 658.8 
PY  - 1980///
CY  - London
PB  - ; Collier Macmillan Publishers
KW  - Management
KW  - Marketing
KW  - Marketing Management
ER  -