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
image is a derivative work of the following images: File:São_Caetano_do_Sul_-_verticalização.JPG licensed with Cc-by-sa-3.0, GFDL 2009-01-27T22:32:15Z Lukaaz
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