Eco-touristic snorkelling routes at Marinha beach (Algarve): Environmental education and human impacts Mafalda Rangel C. Pita J. Gonçalves F. Oliveira C. Costa K. Erzini Publication Journal: Marine Policy Year of Publication: 2015 Volume: 60 Pagination: 62--69 Identifiers Other Numbers: 25561823 Alternative titles DOIGoogle ScholarBibTeXRIS Locators