TY  - BOOK
AU  - Tull,Donald S.
AU  - Hawkins,Del I.
TI  - Marketing research : measurement and method: a text with cases 
SN  - 002421910X
PY  - 1987///
CY  - New York, N.Y.
PB  - MacMillan
KW  - Marketing research
KW  - Case studies
N1  - Includes index
ER  -