This is New. International Edition. The book has exactly same content as US but ISBN and Cover are difference from US edition. Very rare case, textbooks come with different exercises at the end of chapter's. Restricted sales disclaimer wordings not for Sales in USA and Canada may be printed on the cover of the book but it is absolutely legally to use in North America.
From the Publisher
The ultimate objective of any controls text is to teach students how to achieve the best possible design. In this new text, Wolovich integrates classical and modern techniques, systematically develops all the background material necessary to achieve the best possible design, and stresses
flexibility to attain this goal. All the relevant controls topics are presented in a clear pedagogical sequence beginning with the equivalence of system descriptions, followed by coverage of performance goals and tests, and concluding with some new and innovative design methods for achieving the
goals independent of the particular system description.