TY  - BOOK
AU  - Fisher F M
AU  -  Shell K
TI  - Economic theory of price indices :  Two essays on the effects of taste, quality , and technological change   
T2  - Economic theory and mathematical economics
U1  - X:76:(B), L2 
PY  - 1972///
CY  - New York
PB  - Academic Press U. S. A.     
KW  -  Economics
KW  - Price
ER  -