TY - BOOK T1 - The new option secret volatility : the weapon of the professional trader and the most important indicator in option trading A1 - Caplan, David L. LA - English PP - Ellicott PB - Trader's library YR - 1996 UL - https://colectivo.uloyola.es/Record/L205827 OP - 310 SN - 1883272335 ER -