TY  - BOOK
AU  - Delens A.H.R.
TI  - Principles of market research
SN  - 0258966807
AV  - HF5415.2 .D44
PY  - 1950///
CY  - London
PB  - Crosby Lockwood & Sons
KW  - Marketing
N1  - Includes index
ER  -