TY  - BOOK
AU  - Elton Edwin J
AU  -  Gruber Martin J
TI  - Modern portfolio theory and investment nanalysis
SN  - 0471046906
U1  - X65:8, M1/TD3 
PY  - 1981///
CY  - New York
PB  - John Wiley USA       
KW  - Investment
ER  -