Searching a database will provide citations to scholarly journal articles and other scientific research.
To access the full-article, look for "full-text" links that may appear as:
If there are no full-text links, use Find It! to access the article via another library source.
How to Use Find It! (video)
The Purdue Online Writing Lab (OWL) provides good introduction to and examples of how to cite sources in APA style.