Tilden, Freeman, <br/><br/>
Interpreting our heritage / 
Freeman Tilden ; edited by R. Bruce Craig ; foreword by Russell E. Dickenson. 
 - 4th ed., expanded and updated 
 - x, 212 p. :  ill. ; 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780807858677  
<br/><br/><label>Subjects--Topical Terms: </label><br/>National parks and reserves--Interpretive programs<br/>Historic sites--Interpretive programs
<br/><br/><label>LC Class. No.: </label>SB 482 TIL 2008