Dyfyniad APA

Elton, E. J., & Gruber, M. J. (2011). Investments and portfolio performance. World Scientific Publishing Company.

Dyfyniad Arddull Chicago

Elton, Edwin J., and Martin Jay Gruber. Investments and Portfolio Performance. Singapore: World Scientific Publishing Company, 2011.

Dyfyniad MLA

Elton, Edwin J., and Martin Jay Gruber. Investments and Portfolio Performance. World Scientific Publishing Company, 2011.

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