Badger, R. E., & Guthmann, H. G. (1951). Investment: Principles and practices (4th ed.). Prentice-Hall.
Cita Chicago (17th ed.)Badger, Ralph Eastman, i H. G. Guthmann. Investment: Principles and Practices. 4th ed. New York: Prentice-Hall, 1951.
Cita MLA (9th ed.)Badger, Ralph Eastman, i H. G. Guthmann. Investment: Principles and Practices. 4th ed. Prentice-Hall, 1951.
Atenció: Aquestes cites poden no estar 100% correctes.