Badger, R. E., & Guthman, H. G. (1942). Investment principles and practices. Prentice-Hall.
Cita Chicago (17th ed.)Badger, Ralph Eastman, i Harry George Guthman. Investment Principles and Practices. New York: Prentice-Hall, 1942.
Cita MLA (9th ed.)Badger, Ralph Eastman, i Harry George Guthman. Investment Principles and Practices. Prentice-Hall, 1942.
Atenció: Aquestes cites poden no estar 100% correctes.