Mercer, David Marketing strategy : the challenge of the external environment / David Mercer. - London ; Thousand Oaks, Calif. : Sage in association with Open University Business School, 1998. - viii, 325 p. : ill. ; 25 cm. Includes bibliographical references and index. ISBN: 0761958754 0761958762 (pbk) LCCN: 97062267 Nat. Bib. No.: GB98-22828 Subjects--Topical Terms: Marketing.Business planning. LC Class. No.: HF5415 / .M452 1998 Dewey Class. No.: 658.8 MER