Cita APA (7th ed.)

Fontanills, G. (2007). Getting started in commodities. Wiley.

Cita Chicago (17th ed.)

Fontanills, G. Getting Started in Commodities. New Delhi: Wiley, 2007.

Cita MLA (9th ed.)

Fontanills, G. Getting Started in Commodities. Wiley, 2007.