Tyler, Norman, <br/><br/>
HISTORIC PRESERVATION :  AN INTRODUCTION TO ITS HISTORY, PRINCIPLES, AND PRACTICE / 
Norman Tyler, Ilene R. Tyler, Ted J. Ligibel. 
 - Third edition. 
 - xiv, 396 pages :  illustrations, maps ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780393712971 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Historic preservation--United States.  <br/>Architecture--Conservation and restoration--United States.  <br/>Historic buildings--Conservation and restoration--United States.  <br/>Historic sites--Conservation and restoration--United States.