Spence, D. (1999). Futures & options. Glenlake [u.a.].
Chicago Style (17th ed.) CitationSpence, Donald. Futures & Options. Chicago [u.a.]: Glenlake [u.a.], 1999.
MLA (9th ed.) CitationSpence, Donald. Futures & Options. Glenlake [u.a.], 1999.
Warning: These citations may not always be 100% accurate.