There is no standard way to format the attribution of a CC-licensed work, and you can adapt the style or phrasing to suit your needs or the standard citation style of your discipline.
Here are a few examples:
An Ideal Attribution
This video features the song “Play Your Part (Pt.1)” by Girl Talk, available under a Creative Commons Attribution-Noncommercial license. © 2008, Greg Gillis.
A Realistic Attribution
Photo by mollyali, available under a Creative Commons Attribution-Noncommercial license."
-http://mollykleinman.com/2008/08/15/cc-howto-1-how-to-attribute-a-creative-commons-licensed-work/
Use a link shortener to make your attribution easier to read.