Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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