TY  - BOOK
AU  - Tull, Donald S.
AU  - Hawkins, Del.
TI  - Marketing research: measurement and method 
SN  - 002421910X
U1  - 658.83 TUL 
PY  - 1987///
CY  - New York
PB  - Macmillan
KW  - Marketing research
KW  - Case studies
N1  - Includes index
ER  -