The American Psychological Association (APA) style is often used in the social sciences, business, and certain life sciences. APA Style employs brief in-text citations that relate to an alphabetical list of references at the conclusion of the work. The examples below show how APA citation formats are used in social science articles. An article published in Psychology Today uses APA citation styles when referencing the studies on which it builds its argument. This article explains that research shows that... A book review published in APA Bulletin describes several different studies conducted by different researchers using different methodologies. These studies were all interested in learning more about children's friendships, so they all used a similar design. Thus, they all provide evidence that supports the idea put forward in this review. This example shows how multiple studies can be cited using one reference list. In addition to in-text citations, APA citation styles include bibliographies at the end of articles and books. In the first example, the author includes page numbers from three studies in the reference list. She also lists four other publications that report findings related to the topic under discussion. This is just a sample; there are many more options available when citing sources using APA guidelines.