Wikipedia is a popular resource for a good reason. It provides overviews of topics that are new to us and serves as a quick source of well-known information. However, like any source of information, it has its limitations that come out of its format. There are issues of both accuracy and bias in Wikipedia.
The following tools can help you gather background information from a variety of sources.
Compensation for College Athletes. (2016). In Opposing Viewpoints Online Collection. Detroit: Gale.
Lyons, C. L. (2016, February 5). Restorative justice. CQ Researcher, 26, 121-144. Retrieved from http://library.cqpress.com/
Note: If the entry does not have an author listed (as in the top example), list the title of the entry first instead. APA 6th edition states that including database URL information is not necessary, because URLs change frequently. However, you may want to include the database information if the entry is difficult to find.