TY  - BOOK
AU  - Aaker, David A.
AU  - Day, George  S. 
TI  - Marketing research
SN  - 9780471230571
U1  - 658.83 AAK 
PY  - 1980///
CY  - New York : 
PB  - John Wiley & Sons, 
KW  - Marketing research
KW  - Sampling fundamentals
KW  - Data collection
N1  - Includes index
ER  -