Adrian Lubowiecki-Vikuk, Bruno Miguel Barbosa de Sousa, Bojan M. ?er?an, Walter Leal Filho <br/><br/>
Handbook of Sustainable Development and Leisure Services 

 -  Springer  Springer  2021 
<br/><br/><label>ISBN: </label>9783030598204 
<br/><br/><label>Source: </label>EBOOK