TY  - BOOK
AU  - Tull, Donald S.
AU  - Hawkins, Del I. 
TI  - Marketing research: measurement & method
SN  - 9788120309616 
U1  - 658.83 TUL  
PY  - 1993///
CY  - New Delhi
PB  - PHI Pvt Ltd
N1  - Includes bibliographical references and index 
ER  -