TY  - BOOK
AU  - Naert Philippo A
AU  -  Leeflang Peter S E
TI  - Building implementable marketing models
SN  - 90 207 674 8
U1  - X:51:(B), L8 
PY  - 1978///
CY  - Leiden
PB  - Martinus Nijhoff         
KW  - Marketing IRT Mathematics
N1  - Bibliography p 375-94
ER  -