The Investment Portfolio Users Manual and Software, 2nd Edition Intellipro, Inc., Edwin J. Elton, Martin J. Gruber, Christopher Blake, Giorgio DeSantis, Joseph Finnerty, William N. Goetzmann, Ehud Ronn ISBN: 978-0-470-14691-0 Paperback 216 pages This product is not currently available for purchase from this website. For customer care, special sales, or to find your rep, please visit our Contact Us page.