TY  - BOOK
AU  - Tull,Donald S.
TI  - Marketing research : meaning, measurement, and method : a text with cases
U1  - 658.83 
PY  - 1987///
CY  - New York
PB  - Macmillan Pub. Co
KW  - Marketing research
KW  - Marketing research -- Case studie
ER  -