"APA" stands for American Psychological Association, and it is one of several accepted standard formats for giving credit to the sources you use for academic projects. If you want to look up more rules for citing information in APA format, check out the excellent guide at Purdue University's Online Writing Lab (OWL).
The basic APA source citation for a book includes these elements (as many as are available):
Author, A. A. (Year of publication). Title of work: Capital letter also for subtitle. Location: Publisher.
Sample: Locricchio, M. (2010) Teen Cuisine. New York : Marshall Cavendish.
If you use an image from the Internet in your project, you MUST give credit to the source ON THE SAME SCREEN where the image appears. Underneath the image, add a textbox that says, "Image taken from http://www...." See sample below:
Use a citation machine such as MyBib.com to create your APA citation for a website. Begin by clicking the "Create Citation" button and selecting the "Website" tab on the top of the mybib.org screen. Paste the source website's URL into the search field and then follow prompts on the screen. Download the completed citations to your Google Drive!
Click the icon below to access MyBib.com: