Travers, Robert M.W. <br/><br/>An introduction to educational research / Travers, Robert M.W.  -- 4th ed.  -- New York, N.Y.  Macmillan Pub.,  1978 <br/>xiv, 446 p.  22 cm. <br/><br/> Includes bibliographical references and index.  <br/><br/><label>ISBN: </label>0024213705 <br/><br/><label>Subjects--Topical Terms: </label><br/>Educational research. <br/><br/><label>Dewey Class. No.: </label>GC 370.72 T697 1978