Schap, Keith. The complete guide to spread trading [Book] / Keith Schap. - New York : McGraw-Hill, c2005. - viii, 376 p. : ill. ; 24 cm. - The McGraw-Hill trader's edge series . All. ISBN: 0071448446 (hardcover : alk. paper) Subjects--Topical Terms: Futures.Speculation.Investment analysis. Dewey Class. No.: 332.64 52