Conrick IV, Charkes Vertical option spreads : a study of the 1.8 standard deviation inflection point / Charles Conrick IV, Scott Hanson. - New Jersey : Wiley, 2013. - x, 246 pages : illustration ; 23 centimeter. Includes index. ISBN: 9781118537008 Subjects--Topical Terms: Options (Finance). Dewey Class. No.: FOR 332.6328 C76v 2013