APA (7th ed.) Zitazioa

Darst, D. M. (2013). Portfolio investment opportunities in precious metals. Wiley.

Chicago Style (17th ed.) Zitazioa

Darst, David M. Portfolio Investment Opportunities in Precious Metals. Hoboken, New Jersey: Wiley, 2013.

MLA (9th ed.) Zitazioa

Darst, David M. Portfolio Investment Opportunities in Precious Metals. Wiley, 2013.