Leithold, Louis <br/><br/>Trigonometry Louis Leithold  -- MA  Addison Wesley Pub. Co.  1989 <br/>xv, 320p.  23cm. <br/><br/><label>ISBN: </label>971110671 <br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry<br/><br/><label>Dewey Class. No.: </label>GC 516.24 L536 1989