Cita APA (7a ed.)

Spurga, R. C. (2006). Commodity fundamentals: How to trade the precious metals, energy, grain, and tropical commodity markets (1st edition.). John Wiley & Sons, Inc.

Cita Chicago Style (17a ed.)

Spurga, Ronald C. Commodity Fundamentals: How to Trade the Precious Metals, Energy, Grain, and Tropical Commodity Markets. 1st edition. Hoboken, New Jersey: John Wiley & Sons, Inc, 2006.

Cita MLA (9a ed.)

Spurga, Ronald C. Commodity Fundamentals: How to Trade the Precious Metals, Energy, Grain, and Tropical Commodity Markets. 1st edition. John Wiley & Sons, Inc, 2006.