ALL Creative Commons licenses require attribution! When providing attribution to a CC-licensed work, you should include the following:
For more information on citing CC-licensed material, check out this site (which has some great examples) or the MRU Image Citation Guide. If you still have questions, contact the MRU Copyright Advisor at MRUcopyright@mtroyal.ca.
You might also find the following resources helpful in answer your CC-related questions:
For information on how to find copyright-friendly resources, head over to this page