VARGÁNÉ CSOBÁN, Katalin. The significance of ecolabels in tourism. Acta Agraria Debreceniensis, [S. l.], n. 20, p. 118–124, 2006. DOI: 10.34101/actaagrar/20/3165. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/3165.. Acesso em: 9 may. 2024.