Burkart, A.J. <br/><br/>
Tourism : past , present and future 
A.J.Burkart and S.Medlik 
 - 2nd ed. 
 - London  Heinemann  1981 
 - xiv,366p.;  23cm. 
<br/><br/><label>Dewey Class. No.: </label>910.4  / BUR