provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor...
org/licenses/by/3.0CC BY 3.0 Creative Commons Attribution 3.0 truetrue Tags (from Panoramio photo page) InfoField Carreço, Moinhos de Montedor, Viana do Castelo...
.jpg){kind=link}