Barringer.Bruce R Entrepreneurship : successfully launching new ventures / Bruce R. Barringer, R. Duane Ireland. - 4th ed. - Boston : Pearson/Prentice Hall, c2012. - xxv, 563 p. : col. ill. ; 29 cm. Includes bibliographical references and index. ISBN: 9780273761402 LC Class. No.: HB615 / .B374 2012