Porter, Michael E., 1947- Competitive strategy : techniques for analyzing industries and competitors / Michael E. Porter. - New York ; London : Free, 2004. - xxviii, 396 p. ; 24 cm. Originally published: 1980. Includes bibliographical references and index. ISBN: 0743260880 (pbk.) 9780743260886 (pbk.) Nat. Bib. No.: GBA3T9548 bnb Nat. Bib. Agency Control No.: 006895741 Uk Subjects--Topical Terms: Competition.Industrial management.Competitividad.Administración industrial. LC Class. No.: HD41 / P847c 2004