TY  - BOOK
AU  - Tull,Donald S.
AU  - Hawkins,Del I.
TI  - Marketing research: measurement & methods: a text with cases 
SN  - 8120309618 :
AV  - HF5415.2 .T85 1993
PY  - 1993///
CY  - New Delhi
PB  - Prentice-Hall of India
KW  - Marketing
KW  - Case studies
ER  -