As far as I know, a reuser of a CC work, at a minimum, has to provide attribution of the author of the content and to provide a reference to the appropriate license for the work. For non-text elements of a wikipedia page, attribution to wikipedia is a violation of the terms of the license. In addition if some images were licensed as CC-BY others as CC-BY-SA then the appropriate original usage license should be specified with each image. If that isn't happening then there is a violation of the terms of the license. These violations are on the part of the re-user / publisher. So the publisher of any book that fails to attribute each and every photographer, or fails to specify the license of each and every image is in violation of copyright.
|