There is not one correct way to attribute materials available with Creative Commons licenses.
Look below the image of a Michigan lighthouse to see four different, but equally correct, ways to attribute this photo to its creator.
"Untitled" By Matt Morse (Own work) [CC-BY-SA-3.0], via Wikimedia Commons.
Matt Morse's "Untitled." (Photo). 
Untitled by Matt Morse.
"Untitled." By Matt Morse (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons. Available at http://commons.wikimedia.org/wiki/File:Michigan_City_Lighthouse.jpg.
Where and how to put your attributions often depends on your medium.
The chart below provides suggestions on how best to place your attributions based on your material.
Image is a page from "Attributing Creative Commons Materials." Creative Commons Australia and the Australian Research Council Centre of Excellence for Creative Industries and Innovation. (CC BY-2.5 AU)
