TY  - BOOK
AU  - Tuttle,Donald L.
TI  - Managing investment portfolios: a dynamic process 
SN  - 0882628682(pbk.)
PY  - 1983///
CY  - Boston
PB  - Warren, Gorham & Lamont
KW  - Portfolio management
N1  - Includes index; Includes bibliographies references
ER  -