Cita APA (7a ed.)

Dobbins, R., & Witt, S. F. (1983). Portfolio theory and investment management. Martin Robertson.

Cita Chicago Style (17a ed.)

Dobbins, Richard, y Stephen F. Witt. Portfolio Theory and Investment Management. Oxford: Martin Robertson, 1983.

Cita MLA (9a ed.)

Dobbins, Richard, y Stephen F. Witt. Portfolio Theory and Investment Management. Martin Robertson, 1983.