Maginn, J. L., & Tuttle, D. L. (1990). Managing investment portfolios: A dynamic process (2nd ed.). WG & L.
Lua i Stíl Chicago (17ú heag.)Maginn, John L., agus Donald L. Tuttle. Managing Investment Portfolios: A Dynamic Process. 2nd ed. Boston: WG & L, 1990.
Lua MLA (9ú heag.)Maginn, John L., agus Donald L. Tuttle. Managing Investment Portfolios: A Dynamic Process. 2nd ed. WG & L, 1990.
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