TY  - BOOK
AU  - Tull, Donald S.
AU  - Hawkins, Del I
TI  - Marketing research: measurement method
SN  - 002421910X
AV  - HF 5415.2 .T83 1987 
PY  - 1987///
CY  - New York
PB  - Macmillan Publishing Company
KW  - Marketing research
ER  -