Posner, M. J., & Goldberg, P. (1983). The strategic metals investment handbook. Holt, Rinehart and Winston.
Cita Chicago (17th ed.)Posner, Mitchell J., i Philip Goldberg. The Strategic Metals Investment Handbook. New York: Holt, Rinehart and Winston, 1983.
Cita MLA (9th ed.)Posner, Mitchell J., i Philip Goldberg. The Strategic Metals Investment Handbook. Holt, Rinehart and Winston, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.