APA aipamena

 Silverman, D. I. (2002).  Direct access futures: A complete guide to trading electronically.  Wiley.

Chicago Style aipamena

 Silverman, David I.  Direct Access Futures: A Complete Guide to Trading Electronically.  Wiley, 2002.

MLA aipamena

 Silverman, David I.  Direct Access Futures: A Complete Guide to Trading Electronically.  Wiley, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.