Steinfeld, Jake. Get strong : Body by Jake's guide to building confidence, muscles, and a great future for teenage guys / Jake Steinfeld & Jake Steinfeld. - New York : Simon and Schuster, c2002. - xix, 154 p. : ill. ; 24 cm. Includes index. ISBN: 0743224779 9780743224772 LCCN: 2001056853 Subjects--Topical Terms: Bodybuilding.Teenage boys--Psychology.Success. LC Class. No.: GV546.5 / .S74 2002 Dewey Class. No.: 646.7/5