Every image on the internet is NOT free for you to use! To avoid having to create citations, you can also use copyright-free or "public domain" images. Note that Google is NOT a source, it is a search engine--you must click on the image to find out who "owns" the image and cite that source.
Some sites for Public Domain images include:
Websites for Career Exploration
Websites to Research Controversial Issues
Student-Friendly News Sites: