A book offering insights into business strategy. - Author: Kenichi Ohmae, Shigemi Wakamatsu - Title: McKinsey's Differentiation Strategy in its Mature Phase - Price: 1550 yen - ISBN: ISBN4-8334-1192-X Thank you for viewing. This is a used book. There is no damage, missing pages, or noticeable stains. It is an old book. There are some scratches on the cover.