TY  - BOOK
AU  - Lillard,Lee A.
ED  - Research and Development Corporation, 
TI  - Structural relations among variable coefficients : with applications to demand systems and labor supply
T2  - The Rand paper series
PY  - 1979///
CY  - Santa Monica, California
PB  - Rand Corporation
KW  - Economics
KW  - Mathematical models.
KW  - Regression analysis.
N1  - Includes bibliographical references (pages 22-23)
ER  -