TY  - BOOK
AU  - Wallace J P
AU  -  Sherret A
TI  - Estimation of product sttributes and their importa
T2  - Lecture notes in economics and mathematical systems econometrics .89
U1  - X:89Q:(B), L3 
PY  - 1973///
CY  - Berlin
PB  - Springerverlay          
KW  - Production Control Management
ER  -