Gaya APA

Ferri, R, A. (2008). The ETF Book: All You Need To Know About Exchange-Traded Funds . Hoboken: John Willey & Sons Inc..

Gaya MLA

Ferri, Richard, A.. "The ETF Book: All You Need To Know About Exchange-Traded Funds". Hoboken: John Willey & Sons Inc., 2008. Text.