TY  - BOOK
AU  - Tull, Donald S
AU  - Hawkins, Del I
TI  - Marketing Research: meaning, measurement and method: a text with cases
SN  - 0-02-421740-9
U1  - 658.83 21st
PY  - 1976///
CY  - New York
PB  - Macmillan
KW  - Marketing research
ER  -