If you are not familiar with this site, get familiar now, it provides image results from several sources and simplifies the process of finding the original source to attribute.
They also provide a pretty comprehensive guide on how to attribute images here http://wiki.creativecommons.org/Marking/Users, but we’ve paraphrased an example of how to do this with an image from Flickr for you below.
A) Attribution will need to follow this format under each image that is curated using Creative Commons Process:
Photo (with link) by Photographers Name (with link) / CC by (linked to licence)
B) Be sure your links are configured properly.
EXAMPLE IMAGE: https://www.flickr.com/photos/3336/96905377/in/set-1601729
C) When all finished, it should look like this: