If you're good at design, just create your own infographic in Pages or Keynote, and use free icons from the Noun Project.
What Makes a Good Infographic?
Designing a Great Infographic
CITING YOUR SOURCES:
It's customary with infographics to cite your sources in its own section at the bottom of the page, then just copy/paste the URLs (10 pt font, give or take). Here's an example.
