Creative Commons suggests using the TASL (Title, Author, Source, License) for an ideal attribution. These factors and be incorporated into formal academic style guide or citation requirements. It is best practice to link back to information about the creator, source, and license. whenever possible. Examples of using the TASL approach are outlined below.
Citation Example
Example citation:
"Copyright Law” by Nick Youngson, from Alpha Stock Images, is licenced under CC BY-SA 3.0.