Machado, L.P., A. Almeida
,
(2017)
,
"Walking tours and Tourism Concept and Trends"
,
Linda L. Lowry
,
International Encyclopedia of Travel and Tourism
,
University of Massachusetts
,
SAGE Publications, Inc
,
1421-1423
.
Autor(es) CEFAGE
Luiz Tadeu Milheiro de Menezes Pinto Machado