All copyrighted material that you use in your thesis or dissertation must include an expanded citation. The 6th Edition of the APA manual outlines the suggested wording for this citation in section 2.12. If the copyright holder has asked you to use specific wording, then use that rather than the wording outlined in the APA manual.
The suggested wording is as follows:
For a Journal Article: From "Title of Article," by A. N. Author and C. O. Author, year, Title of Journal, Volume, p. xx. Copyright [year] by the Name of the Copyright Holder. Reprinted [or Adapted] with permission.
For a Book: From Title of Book (p. xxx), by A. N. Author and C. O. Author, year, Place of Publication: Publisher. Copyright [year] by the Name of Copyright Holder. Reprinted [or adapted] with permission.
CreativeCommons.org suggests the following attribution of material used under a Creative Commons Licence:
"Creative Commons 10th Birthday Celebration San Francisco" by tvol is licensed under CC BY 2.0.
This attribution includes the name of the photo, the creator of the photo, and a link to the creative commons licence it is released under.