Ely, Vivien King Ely Entrepreneurship / Vivien King Ely, Robert G. Berns, Debbi L. Popo. - 3rd ed. - New York : Glencoe, c1990. - 180 p. : ill. ; 28 cm. - Career competencies in marketing series . ISBN: 0070194238 Subjects--Topical Terms: New business enterprises.Entrepreneurship.