Timmons, Jeffry A. New venture creation : entrepreneurship for the 21st century / Jeffry A. Timmons, Stephen Spinelli. - 7th ed. - [S.l.] : Mcgraw-Hill College, 2006. - 658 p. ; 27 cm. ISBN: 0073102792 (paperback) 9780073102795 (paperback) Dewey Class. No.: 658.1141