WARD ROBERT W. (2004). OPTIONS AND OPTIONS TRADING. MCGRAW-HILL.
Chicago-čujuhus (17. p.)WARD ROBERT W. OPTIONS AND OPTIONS TRADING. NEW YORK: MCGRAW-HILL, 2004.
MLA-čujuhus (9. p.)WARD ROBERT W. OPTIONS AND OPTIONS TRADING. MCGRAW-HILL, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.